{
  "1": [
    {
      "difficulty": 1,
      "question": "天时不如地利",
      "answer": "地利不如人和。",
      "length_of_answer": 1
    },
    {
      "difficulty": 1,
      "question": "生于忧患",
      "answer": "死于安乐。",
      "length_of_answer": 1
    },
    {
      "difficulty": 1,
      "question": "老吾老",
      "answer": "以及人之老。",
      "length_of_answer": 1
    },
    {
      "difficulty": 1,
      "question": "玉不琢",
      "answer": "不成器。",
      "length_of_answer": 1
    },
    {
      "difficulty": 1,
      "question": "十年树木",
      "answer": "百年树人。",
      "length_of_answer": 1
    },
    {
      "difficulty": 1,
      "question": "千里之行",
      "answer": "始于足下。",
      "length_of_answer": 1
    },
    {
      "difficulty": 1,
      "question": "己所不欲",
      "answer": "勿施于人。",
      "length_of_answer": 1
    },
    {
      "difficulty": 1,
      "question": "学而时习之",
      "answer": "不亦说乎？",
      "length_of_answer": 1
    },
    {
      "difficulty": 1,
      "question": "三人行",
      "answer": "必有我师焉。",
      "length_of_answer": 1
    },
    {
      "difficulty": 1,
      "question": "由俭入奢易",
      "answer": "由奢入俭难。",
      "length_of_answer": 1
    },
    {
      "difficulty": 1,
      "question": "读书破万卷",
      "answer": "下笔如有神。",
      "length_of_answer": 1
    },
    {
      "difficulty": 1,
      "question": "会当凌绝顶",
      "answer": "一览众山小。",
      "length_of_answer": 1
    },
    {
      "difficulty": 1,
      "question": "先天下之忧而忧",
      "answer": "后天下之乐而乐。",
      "length_of_answer": 1
    }
  ],
  "2": [
    {
      "difficulty": 2,
      "question": "勿以恶小而为之",
      "answer": "勿以善小而不为。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "宁为玉碎",
      "answer": "不为瓦全。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "陈涉太息曰：嗟乎",
      "answer": "燕雀安知鸿鹄之志哉。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "精诚所至",
      "answer": "金石为开。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "不入虎穴",
      "answer": "焉得虎子。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "天行健",
      "answer": "君子以自强不息。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "地势坤",
      "answer": "君子以厚德载物。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "知彼知己",
      "answer": "百战不殆。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "得道者多助",
      "answer": "失道者寡助。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "人恒过",
      "answer": "然后能改。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "天将降大任于是人也",
      "answer": "必先苦其心志，劳其筋骨，饿其体肤。",
      "length_of_answer": 3
    },
    {
      "difficulty": 2,
      "question": "尽信书",
      "answer": "则不如无书。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "民为贵",
      "answer": "社稷次之，君为轻。",
      "length_of_answer": 2
    },
    {
      "difficulty": 2,
      "question": "皮之不存",
      "answer": "毛将焉附？",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "一鼓作气",
      "answer": "再而衰，三而竭。",
      "length_of_answer": 2
    },
    {
      "difficulty": 2,
      "question": "多行不义",
      "answer": "必自毙。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "吾生也有涯",
      "answer": "而知也无涯。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "前事不忘",
      "answer": "后事之师。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "塞翁失马",
      "answer": "焉知非福。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "大道之行也",
      "answer": "天下为公。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "学而不思则罔",
      "answer": "思而不学则殆。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "逝者如斯夫",
      "answer": "不舍昼夜。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "言必信",
      "answer": "行必果。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "君子坦荡荡",
      "answer": "小人长戚戚。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "所谓伊人",
      "answer": "在水一方。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "粉骨碎身浑不怕",
      "answer": "要留清白在人间。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "春色满园关不住",
      "answer": "一枝红杏出墙来。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "兼听则明",
      "answer": "偏信则暗。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "出淤泥而不染",
      "answer": "濯清涟而不妖。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "谁言寸草心",
      "answer": "报得三春晖。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "人生自古谁无死",
      "answer": "留取丹心照汗青。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "此去泉台招旧部",
      "answer": "旌旗十万斩阎罗",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "独在异乡为异客",
      "answer": "每逢佳节倍思亲。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "劝君更尽一杯酒",
      "answer": "西出阳关无故人。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "野火烧不尽",
      "answer": "春风吹又生。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "但愿人长久",
      "answer": "千里共婵娟。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "静以修身",
      "answer": "俭以养德。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "纸上得来终觉浅",
      "answer": "绝知此事要躬行。",
      "length_of_answer": 1
    },
    {
      "difficulty": 2,
      "question": "闻道有先后",
      "answer": "术业有专攻。",
      "length_of_answer": 1
    }
  ],
  "3": [
    {
      "difficulty": 3,
      "question": "将在外",
      "answer": "君命有所不受。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "桃李不言",
      "answer": "下自成蹊。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "运筹帷幄之中",
      "answer": "决胜千里之外。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "当断不断",
      "answer": "反受其乱。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "流水不腐",
      "answer": "户枢不蠹。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "二人同心",
      "answer": "其利断金。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "穷则变",
      "answer": "变则通，通则久。",
      "length_of_answer": 2
    },
    {
      "difficulty": 3,
      "question": "静如处子",
      "answer": "动如脱兔。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "攻其无备",
      "answer": "出其不意。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "仁者爱人",
      "answer": "有礼者敬人。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "辅车相依",
      "answer": "唇亡齿寒。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "人谁无过？过而能改",
      "answer": "善莫大焉。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "亡羊而补牢",
      "answer": "未为迟也。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "士为知己者死",
      "answer": "女为悦己者容。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "当局者迷",
      "answer": "旁观者清。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "临渊羡鱼",
      "answer": "不如退而结网。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "古之欲明明德于天下者",
      "answer": "先治其国。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "身修而后家齐",
      "answer": "家齐而后国治。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "礼尚往来，往而不来，非礼也",
      "answer": "来而不往，亦非礼也。",
      "length_of_answer": 2
    },
    {
      "difficulty": 3,
      "question": "仓廪实而知礼节",
      "answer": "衣食足而知荣辱。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "天网恢恢",
      "answer": "疏而不失。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "知人者智",
      "answer": "自知者明。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "合抱之木",
      "answer": "生于毫末。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "故不积跬步，无以至千里",
      "answer": "不积小流，无以成江海。",
      "length_of_answer": 2
    },
    {
      "difficulty": 3,
      "question": "锲而不舍",
      "answer": "金石可镂。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "青，取之于蓝",
      "answer": "而青于蓝。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "敏而好学",
      "answer": "不耻下问。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "人无远虑",
      "answer": "必有近忧。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "小不忍",
      "answer": "则乱大谋。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "工欲善其事",
      "answer": "必先利其器。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "过而不改",
      "answer": "是谓过矣。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "三军可夺帅也",
      "answer": "匹夫不可夺志也。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "岁寒",
      "answer": "然后知松柏之后凋也。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "知者不惑",
      "answer": "仁者不忧，勇者不惧。",
      "length_of_answer": 2
    },
    {
      "difficulty": 3,
      "question": "其身正，不令而行",
      "answer": "其身不正，虽令不从。",
      "length_of_answer": 2
    },
    {
      "difficulty": 3,
      "question": "名不正",
      "answer": "则言不顺。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "不在其位",
      "answer": "不谋其政。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "不义而富且贵",
      "answer": "于我如浮云。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "发愤忘食",
      "answer": "乐以忘忧。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "学而不厌",
      "answer": "诲人不倦。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "君子喻于义",
      "answer": "小人喻于利。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "德不孤",
      "answer": "必有邻。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "见贤思齐焉",
      "answer": "见不贤而内自省也。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "君子成人之美",
      "answer": "不成人之恶。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "四海之内",
      "answer": "皆兄弟也。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "投我以桃",
      "answer": "报之以李。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "昔我往矣",
      "answer": "杨柳依依。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "他山之石",
      "answer": "可以攻玉。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "千里之堤",
      "answer": "毁于蚁穴。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "梅须逊雪三分白",
      "answer": "雪却输梅一段香。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "春风得意马蹄疾",
      "answer": "一日看尽长安花。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "莫等闲",
      "answer": "白了少年头，空悲切。",
      "length_of_answer": 2
    },
    {
      "difficulty": 3,
      "question": "晴川历历汉阳树",
      "answer": "芳草萋萋鹦鹉洲。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "对酒当歌",
      "answer": "人生几何。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "春蚕到死丝方尽",
      "answer": "蜡炬成灰泪始干。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "长风破浪会有时",
      "answer": "直挂云帆济沧海。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "停车坐爱枫林晚",
      "answer": "霜叶红于二月花。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "醉翁之意不在酒",
      "answer": "在乎山水之间也。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "红军不怕远征难",
      "answer": "万水千山只等闲。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "羌笛何须怨杨柳",
      "answer": "春风不度玉门关。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "不要人夸颜色好",
      "answer": "只留清气满乾坤。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "海内存知己",
      "answer": "天涯若比邻。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "但使龙城飞将在",
      "answer": "不教胡马度阴山。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "洛阳亲友如相问",
      "answer": "一片冰心在玉壶。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "苟全性命于乱世",
      "answer": "不求闻达于诸侯。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "鞠躬尽瘁",
      "answer": "死而后已。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "山重水复疑无路",
      "answer": "柳暗花明又一村。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "人非生而知之者",
      "answer": "孰能无惑？",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "师者",
      "answer": "所以传道受业解惑也。",
      "length_of_answer": 1
    },
    {
      "difficulty": 3,
      "question": "莫愁前路无知己",
      "answer": "天下谁人不识君。",
      "length_of_answer": 1
    }
  ],
  "4": [
    {
      "difficulty": 4,
      "question": "穷兵黩武",
      "answer": "未有不亡者也。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "凡事豫则立",
      "answer": "不豫则废。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "智者不惑",
      "answer": "仁者不忧，勇者不惧。",
      "length_of_answer": 2
    },
    {
      "difficulty": 4,
      "question": "得时者昌",
      "answer": "失时者亡。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "失之东隅",
      "answer": "收之桑榆。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "方以类聚",
      "answer": "物以群分。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "防民之口",
      "answer": "甚于防川。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "从善如登",
      "answer": "从恶如崩。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "兵者，国之大事",
      "answer": "死生之地，存亡之道，不可不察也",
      "length_of_answer": 3
    },
    {
      "difficulty": 4,
      "question": "百战百胜",
      "answer": "非善之善者也。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "穷则独善其身",
      "answer": "达则兼济天下。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "俭，德之共也",
      "answer": "侈，恶之大也。",
      "length_of_answer": 2
    },
    {
      "difficulty": 4,
      "question": "君子之交淡如水",
      "answer": "小人之交甘若醴。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "战无不胜",
      "answer": "攻无不取。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "以铜为镜，可以正衣冠",
      "answer": "以古为镜，可以知兴替。",
      "length_of_answer": 2
    },
    {
      "difficulty": 4,
      "question": "水至清则无鱼",
      "answer": "人至察则无徒。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "大学之道",
      "answer": "在明明德。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "欲治其国者",
      "answer": "先齐其家。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "苟日新",
      "answer": "日日新，又日新。",
      "length_of_answer": 2
    },
    {
      "difficulty": 4,
      "question": "学然后知不足",
      "answer": "教然后知困。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "一张一弛",
      "answer": "文武之道。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "一年之计，莫如树谷",
      "answer": "十年之计，莫如树木。",
      "length_of_answer": 2
    },
    {
      "difficulty": 4,
      "question": "礼义廉耻",
      "answer": "国之四维。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "民不畏死",
      "answer": "奈何以死惧之。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "胜人者有力",
      "answer": "自胜者强。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "祸兮福之所倚",
      "answer": "福兮祸之所伏。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "信言不美",
      "answer": "美言不信。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "轻诺必寡信",
      "answer": "多易必多难。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "大音希声",
      "answer": "大象无形。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "君子求诸己",
      "answer": "小人求诸人。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "君子和而不同",
      "answer": "小人同而不和。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "不患人之不己知",
      "answer": "患不知人也。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "君子务本",
      "answer": "本立而道生。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "不患人之不己知",
      "answer": "患不知人也。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "往者不可谏",
      "answer": "来者犹可追。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "知之者不如好之者",
      "answer": "好之者不如乐之者。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "曾经沧海难为水",
      "answer": "除却巫山不是云。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "沉舟侧畔千帆过",
      "answer": "病树前头万木春。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "大风起兮云飞扬",
      "answer": "威加海内兮归故乡。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "路漫漫其修远兮",
      "answer": "吾将上下而求索。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "忽如一夜春风来",
      "answer": "千树万树梨花开。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "三十功名尘与土",
      "answer": "八千里路云和月。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "月落乌啼霜满天",
      "answer": "江枫渔火对愁眠。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "无可奈何花落去",
      "answer": "似曾相识燕归来。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "日月之行",
      "answer": "若出其中。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "星汉灿烂",
      "answer": "若出其里。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "身无彩凤双飞翼",
      "answer": "心有灵犀一点通。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "问君能有几多愁",
      "answer": "恰似一江春水向东流。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "安能摧眉折腰事权贵",
      "answer": "使我不得开心颜。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "云想衣裳花想容",
      "answer": "春风拂槛露华浓。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "东风不与周郎便",
      "answer": "铜雀春深锁二乔。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "一骑红尘妃子笑",
      "answer": "无人知是荔枝来。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "此曲只应天上有",
      "answer": "人间能得几回闻。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "衣带渐宽终不悔",
      "answer": "为伊消得人憔悴。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "天若有情天亦老",
      "answer": "人间正道是沧桑。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "为有牺牲多壮志",
      "answer": "敢教日月换新天。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "雄关漫道真如铁",
      "answer": "而今迈步从头越。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "落霞与孤鹜齐飞",
      "answer": "秋水共长天一色。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "穷且益坚",
      "answer": "不坠青云之志。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "黄沙百战穿金甲",
      "answer": "不破楼兰终不还。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "大漠孤烟直",
      "answer": "长河落日圆。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "千呼万唤始出来",
      "answer": "犹抱琵琶半遮面。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "同是天涯沦落人",
      "answer": "相逢何必曾相识。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "天长地久有时尽",
      "answer": "此恨绵绵无绝期。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "近水楼台先得月",
      "answer": "向阳花木易为春。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "亲贤臣，远小人",
      "answer": "此先汉所以兴隆也。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "非淡泊无以明志",
      "answer": "非宁静无以致远。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "非学无以广才",
      "answer": "非志无以成学。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "我自横刀向天笑",
      "answer": "去留肝胆两昆仑。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "江山代有才人出",
      "answer": "各领风骚数百年。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "众里寻他千百度",
      "answer": "蓦然回首，那人却在灯火阑珊处。",
      "length_of_answer": 2
    },
    {
      "difficulty": 4,
      "question": "春潮带雨晚来急",
      "answer": "野渡无人舟自横。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "业精于勤荒于嬉",
      "answer": "行成于思毁于随。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "春城无处不飞花",
      "answer": "寒食东风御柳斜。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "力拔山兮气盖世",
      "answer": "时不利兮骓不逝。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "横眉冷对千夫指",
      "answer": "俯首甘为孺子牛。",
      "length_of_answer": 1
    },
    {
      "difficulty": 4,
      "question": "我劝天公重抖擞",
      "answer": "不拘一格降人才。",
      "length_of_answer": 1
    }
  ],
  "5": [
    {
      "difficulty": 5,
      "question": "不战而屈人之兵",
      "answer": "善之善者也。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "兵无常势",
      "answer": "水无常形。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "凡用兵之法",
      "answer": "全国为上，破国次之。",
      "length_of_answer": 2
    },
    {
      "difficulty": 5,
      "question": "故其疾如风",
      "answer": "其徐如林。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "凡战者",
      "answer": "以正合，以奇胜。",
      "length_of_answer": 2
    },
    {
      "difficulty": 5,
      "question": "困于心衡于虑",
      "answer": "而后作。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "孔子登东山而小鲁",
      "answer": "登泰山而小天下。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "权，然后知轻重",
      "answer": "度，然后知长短。",
      "length_of_answer": 2
    },
    {
      "difficulty": 5,
      "question": "其兴也勃焉",
      "answer": "其亡也忽焉。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "国之大事",
      "answer": "在祀与戎。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "哀莫大于心死",
      "answer": "而人死亦次之。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "好而知其恶",
      "answer": "恶而知其美。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "富润屋",
      "answer": "德润身。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "所谓诚其意者",
      "answer": "毋自欺也。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "知止而后有定",
      "answer": "定而后能静。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "利莫大于治",
      "answer": "害莫大于乱。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "君子固穷",
      "answer": "小人穷斯滥矣。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "君子泰而不骄",
      "answer": "小人骄而不泰。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "不迁怒",
      "answer": "不贰过。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "靡不有初",
      "answer": "鲜克有终。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "战战兢兢",
      "answer": "如临深渊，如履薄冰。",
      "length_of_answer": 2
    },
    {
      "difficulty": 5,
      "question": "高山仰止",
      "answer": "景行行止。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "亦余心之所善兮",
      "answer": "虽九死其犹未悔。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "今人不见古时月",
      "answer": "今月曾经照古人。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "男儿何不带吴钩",
      "answer": "收取关山五十州。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "黑云压城城欲摧",
      "answer": "甲光向日金鳞开。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "二十四桥明月夜",
      "answer": "玉人何处教吹箫。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "六王毕，四海一",
      "answer": "蜀山兀，阿房出。",
      "length_of_answer": 2
    },
    {
      "difficulty": 5,
      "question": "后人哀之而不鉴之",
      "answer": "亦使后人而复哀后人也。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "使天下之人",
      "answer": "不敢言而敢怒。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "笔落惊风雨",
      "answer": "诗成泣鬼神。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "疏影横斜水清浅",
      "answer": "暗香浮动月黄昏。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "忧劳可以兴国",
      "answer": "逸豫可以亡身。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "牢骚太盛防肠断",
      "answer": "风物长宜放眼量。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "红雨随心翻作浪",
      "answer": "青山着意化为桥。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "今夜月明人尽望",
      "answer": "不知秋思落谁家。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "试玉要烧三日满",
      "answer": "辨材须待七年期。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "寄蜉蝣于天地",
      "answer": "渺沧海之一粟。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "哀吾生之须臾",
      "answer": "羡长江之无穷。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "战士军前半死生",
      "answer": "美人帐下犹歌舞。",
      "length_of_answer": 1
    },
    {
      "difficulty": 5,
      "question": "寄意寒星荃不察",
      "answer": "我以我血荐轩辕。",
      "length_of_answer": 1
    }
  ],
  "6": [
    {
      "difficulty": 6,
      "question": "博学之，审问之",
      "answer": "慎思之，明辨之，笃行之。",
      "length_of_answer": 3
    },
    {
      "difficulty": 6,
      "question": "仁者见之谓之仁",
      "answer": "智者见之谓之智。",
      "length_of_answer": 1
    },
    {
      "difficulty": 6,
      "question": "谦谦君子",
      "answer": "卑以自牧。",
      "length_of_answer": 1
    },
    {
      "difficulty": 6,
      "question": "穷不失义",
      "answer": "达不离道。",
      "length_of_answer": 1
    },
    {
      "difficulty": 6,
      "question": "天作孽，犹可违；",
      "answer": "自作孽，不可逭。",
      "length_of_answer": 2
    },
    {
      "difficulty": 6,
      "question": "居安思危",
      "answer": "思则有备，有备无患。",
      "length_of_answer": 2
    },
    {
      "difficulty": 6,
      "question": "道生一",
      "answer": "一生二，二生三，三生万物",
      "length_of_answer": 3
    },
    {
      "difficulty": 6,
      "question": "知足不辱",
      "answer": "知止不殆。",
      "length_of_answer": 1
    },
    {
      "difficulty": 6,
      "question": "视其所以",
      "answer": "观其所由，察其所安。",
      "length_of_answer": 2
    },
    {
      "difficulty": 6,
      "question": "仰之弥高",
      "answer": "钻之弥坚。",
      "length_of_answer": 1
    },
    {
      "difficulty": 6,
      "question": "采薇采薇",
      "answer": "薇亦作止。",
      "length_of_answer": 1
    },
    {
      "difficulty": 6,
      "question": "刑过不避大臣",
      "answer": "赏善不遗匹夫。",
      "length_of_answer": 1
    },
    {
      "difficulty": 6,
      "question": "慨当以慷",
      "answer": "忧思难忘。",
      "length_of_answer": 1
    },
    {
      "difficulty": 6,
      "question": "请君试问东流水",
      "answer": "别意与之谁短长。",
      "length_of_answer": 1
    },
    {
      "difficulty": 6,
      "question": "戍卒叫，函谷举",
      "answer": "楚人一炬，可怜焦土。",
      "length_of_answer": 2
    },
    {
      "difficulty": 6,
      "question": "独夫之心",
      "answer": "日益骄固。",
      "length_of_answer": 1
    },
    {
      "difficulty": 6,
      "question": "一夫作难而七庙隳",
      "answer": "身死人手，为天下笑者，何也，仁义不施而攻守之势异也。",
      "length_of_answer": 4
    }
  ],
  "7": [
    {
      "difficulty": 7,
      "question": "上兵伐谋",
      "answer": "其次伐交，其次伐兵，其下攻城。",
      "length_of_answer": 3
    },
    {
      "difficulty": 7,
      "question": "故兵无常势",
      "answer": "水无常形，能因敌变化而取胜者，谓之神。",
      "length_of_answer": 3
    },
    {
      "difficulty": 7,
      "question": "物格而后知至",
      "answer": "知至而后意诚。",
      "length_of_answer": 1
    },
    {
      "difficulty": 7,
      "question": "大方无隅",
      "answer": "大器晚成。",
      "length_of_answer": 1
    },
    {
      "difficulty": 7,
      "question": "庄生晓梦迷蝴蝶",
      "answer": "望帝春心托杜鹃。",
      "length_of_answer": 1
    },
    {
      "difficulty": 7,
      "question": "是以太山不让土壤，故能成其大",
      "answer": "河海不择细流，故能就其深。",
      "length_of_answer": 2
    },
    {
      "difficulty": 7,
      "question": "王者不却众庶",
      "answer": "故能明其德。",
      "length_of_answer": 1
    },
    {
      "difficulty": 7,
      "question": "灭六国者，六国也，非秦也",
      "answer": "族秦者，秦也，非天下也。",
      "length_of_answer": 3
    },
    {
      "difficulty": 7,
      "question": "秦孝公据崤函之固",
      "answer": "拥雍州之地。",
      "length_of_answer": 1
    },
    {
      "difficulty": 7,
      "question": "席卷天下，包举宇内",
      "answer": "囊括四海之意，并吞八荒之心。",
      "length_of_answer": 2
    },
    {
      "difficulty": 7,
      "question": "斩木为兵，揭竿为旗",
      "answer": "天下云集响应，赢粮而景从。",
      "length_of_answer": 2
    },
    {
      "difficulty": 7,
      "question": "胡人不敢南下而牧马",
      "answer": "士不敢弯弓而报怨。",
      "length_of_answer": 1
    },
    {
      "difficulty": 7,
      "question": "振长策而御宇内",
      "answer": "吞二周而亡诸侯。",
      "length_of_answer": 1
    }
  ],
  "8": [
    {
      "difficulty": 8,
      "question": "善战者",
      "answer": "致人而不致于人。",
      "length_of_answer": 1
    },
    {
      "difficulty": 8,
      "question": "投之亡地然后存",
      "answer": "陷之死地然后生。",
      "length_of_answer": 1
    },
    {
      "difficulty": 8,
      "question": "兵之情主速",
      "answer": "乘人之不及。",
      "length_of_answer": 1
    },
    {
      "difficulty": 8,
      "question": "知彼知己，胜乃不殆",
      "answer": "知天知地，胜乃可全。",
      "length_of_answer": 2
    },
    {
      "difficulty": 8,
      "question": "胜兵先胜而后求战",
      "answer": "败兵先战而后求胜。",
      "length_of_answer": 1
    },
    {
      "difficulty": 8,
      "question": "以力服人者，非心服也，力不赡也",
      "answer": "以德服人者，中心悦而诚服也。",
      "length_of_answer": 2
    },
    {
      "difficulty": 8,
      "question": "虽有智慧，不如乘势；",
      "answer": "虽有镃基，不如待时。",
      "length_of_answer": 2
    },
    {
      "difficulty": 8,
      "question": "流水之为物也",
      "answer": "不盈科不行。",
      "length_of_answer": 1
    },
    {
      "difficulty": 8,
      "question": "国将兴",
      "answer": "必贵师而重傅。",
      "length_of_answer": 1
    },
    {
      "difficulty": 8,
      "question": "敖不可长",
      "answer": "欲不可从。",
      "length_of_answer": 1
    },
    {
      "difficulty": 8,
      "question": "大道废，有仁义",
      "answer": "智慧出，有大伪。",
      "length_of_answer": 2
    },
    {
      "difficulty": 8,
      "question": "圣人无常心",
      "answer": "以百姓心为心。",
      "length_of_answer": 1
    },
    {
      "difficulty": 8,
      "question": "大直若屈",
      "answer": "大巧若拙，大辩若讷。",
      "length_of_answer": 2
    },
    {
      "difficulty": 8,
      "question": "玉在山而草木润",
      "answer": "渊生珠而崖不枯。",
      "length_of_answer": 1
    },
    {
      "difficulty": 8,
      "question": "克己复礼为仁",
      "answer": "一日克己复礼，天下归仁焉。",
      "length_of_answer": 2
    },
    {
      "difficulty": 8,
      "question": "鉴于往事",
      "answer": "有资于治道。",
      "length_of_answer": 1
    },
    {
      "difficulty": 8,
      "question": "人世几回伤往事",
      "answer": "山形依旧枕寒流。",
      "length_of_answer": 1
    },
    {
      "difficulty": 8,
      "question": "夫祸患常积于忽微",
      "answer": "而智勇多困于所溺。",
      "length_of_answer": 1
    }
  ],
  "9": [
    {
      "difficulty": 9,
      "question": "始如处女，敌人开户",
      "answer": "后如脱兔，敌不及拒。",
      "length_of_answer": 2
    },
    {
      "difficulty": 9,
      "question": "纷纷纭纭，斗乱而不可乱",
      "answer": "浑浑沌沌，形圆而不可败。",
      "length_of_answer": 2
    },
    {
      "difficulty": 9,
      "question": "知止可以不殆",
      "answer": "譬道在天下。",
      "length_of_answer": 1
    },
    {
      "difficulty": 9,
      "question": "不愆不忘",
      "answer": "率由旧章。",
      "length_of_answer": 1
    },
    {
      "difficulty": 9,
      "question": "履至尊而制六合",
      "answer": "执敲扑而鞭笞天下，威振四海。",
      "length_of_answer": 2
    }
  ]
}