{
  "id": "S039",
  "type": "单选题",
  "type_code": "single",
  "stem": "简单随机抽样又称为（ ）。",
  "stem_text": "简单随机抽样又称为（ ）。",
  "options": [
    {
      "key": "A",
      "text": "抽签抽样"
    },
    {
      "key": "B",
      "text": "随机数表抽样"
    },
    {
      "key": "C",
      "text": "纯随机抽样"
    },
    {
      "key": "D",
      "text": "等距随机抽样"
    }
  ],
  "options_text": [
    {
      "key": "A",
      "text": "抽签抽样"
    },
    {
      "key": "B",
      "text": "随机数表抽样"
    },
    {
      "key": "C",
      "text": "纯随机抽样"
    },
    {
      "key": "D",
      "text": "等距随机抽样"
    }
  ],
  "answer_keys": [
    "C"
  ],
  "answer_display": "C",
  "answer_texts": [
    "纯随机抽样"
  ],
  "sources": [
    {
      "edition": "第12届",
      "edition_num": 12,
      "no": 39,
      "uid": "12-039",
      "file": "第12届本科模拟题（10.19）.xlsx"
    }
  ],
  "source_display": "第12届 第39题",
  "source_count": 1,
  "images": [],
  "warnings": [],
  "conflict": null,
  "url": "/q/S039.html"
}