{
  "id": "S215",
  "type": "单选题",
  "type_code": "single",
  "stem": "某银行想知道平均每户活期存款余额和估计其总量，根据存折账号的顺序，每150本存折抽出一本登记其余额。这样的抽样组织形式是（）。",
  "stem_text": "某银行想知道平均每户活期存款余额和估计其总量，根据存折账号的顺序，每150本存折抽出一本登记其余额。这样的抽样组织形式是（）。",
  "options": [
    {
      "key": "A",
      "text": "分层抽样"
    },
    {
      "key": "B",
      "text": "整群抽样"
    },
    {
      "key": "C",
      "text": "系统抽样"
    },
    {
      "key": "D",
      "text": "简单随机抽样"
    }
  ],
  "options_text": [
    {
      "key": "A",
      "text": "分层抽样"
    },
    {
      "key": "B",
      "text": "整群抽样"
    },
    {
      "key": "C",
      "text": "系统抽样"
    },
    {
      "key": "D",
      "text": "简单随机抽样"
    }
  ],
  "answer_keys": [
    "C"
  ],
  "answer_display": "C",
  "answer_texts": [
    "系统抽样"
  ],
  "sources": [
    {
      "edition": "第15届",
      "edition_num": 15,
      "no": 45,
      "uid": "15-045",
      "file": "第15届市调大赛本科组模拟题1.docx"
    }
  ],
  "source_display": "第15届 第45题",
  "source_count": 1,
  "images": [],
  "warnings": [],
  "conflict": null,
  "url": "/q/S215.html"
}