{
  "id": "S153",
  "type": "单选题",
  "type_code": "single",
  "stem": "设计权数是样本单元入样概率的（）。",
  "stem_text": "设计权数是样本单元入样概率的（）。",
  "options": [
    {
      "key": "A",
      "text": "倒数"
    },
    {
      "key": "B",
      "text": "平方"
    },
    {
      "key": "C",
      "text": "平方根"
    },
    {
      "key": "D",
      "text": "相关系数"
    }
  ],
  "options_text": [
    {
      "key": "A",
      "text": "倒数"
    },
    {
      "key": "B",
      "text": "平方"
    },
    {
      "key": "C",
      "text": "平方根"
    },
    {
      "key": "D",
      "text": "相关系数"
    }
  ],
  "answer_keys": [
    "A"
  ],
  "answer_display": "A",
  "answer_texts": [
    "倒数"
  ],
  "sources": [
    {
      "edition": "第14届",
      "edition_num": 14,
      "no": 37,
      "uid": "14-037",
      "file": "第14届市调大赛本科组模拟题(9).docx"
    }
  ],
  "source_display": "第14届 第37题",
  "source_count": 1,
  "images": [],
  "warnings": [],
  "conflict": null,
  "url": "/q/S153.html"
}