{
  "id": "S110",
  "type": "单选题",
  "type_code": "single",
  "stem": "已知某工厂甲产品产量和生产成本有直线关系，在这条直线上，当产量为1000时，其生产成本为32000元，其中不随产量变化的成本为8000元，则成本总额对产量的回归方程是（ ）。",
  "stem_text": "已知某工厂甲产品产量和生产成本有直线关系，在这条直线上，当产量为1000时，其生产成本为32000元，其中不随产量变化的成本为8000元，则成本总额对产量的回归方程是（ ）。",
  "options": [
    {
      "key": "A",
      "text": "ŷ=8000+24x"
    },
    {
      "key": "B",
      "text": "ŷ=6+0.24x"
    },
    {
      "key": "C",
      "text": "ŷ=24000+6x"
    },
    {
      "key": "D",
      "text": "ŷ=24+6000x"
    }
  ],
  "options_text": [
    {
      "key": "A",
      "text": "ŷ=8000+24x"
    },
    {
      "key": "B",
      "text": "ŷ=6+0.24x"
    },
    {
      "key": "C",
      "text": "ŷ=24000+6x"
    },
    {
      "key": "D",
      "text": "ŷ=24+6000x"
    }
  ],
  "answer_keys": [
    "A"
  ],
  "answer_display": "A",
  "answer_texts": [
    "ŷ=8000+24x"
  ],
  "sources": [
    {
      "edition": "第13届",
      "edition_num": 13,
      "no": 51,
      "uid": "13-051",
      "file": "第13届市调大赛本科组模拟题.docx"
    }
  ],
  "source_display": "第13届 第51题",
  "source_count": 1,
  "images": [],
  "warnings": [],
  "conflict": null,
  "url": "/q/S110.html"
}