{
  "uid": "A14",
  "book_id": "A",
  "book_title": "市场调查理论与方法（第二版）",
  "book_isbn": "978-7-04-060861-8",
  "role": "主要参考教材",
  "publisher": "高等教育出版社",
  "no": 14,
  "title": "多变量数据分析（2）",
  "sections": [
    "因子分析",
    "聚类分析",
    "对应分析",
    "多维标度分析",
    "联合分析",
    "多指标综合评价",
    "结构方程模型"
  ],
  "status": "pending",
  "chars": 0,
  "source": "",
  "text": "",
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  "retrieval_note": "本区为二级资料（兜底）。请先查题库 /llms-full.txt 或 /api/questions.json；只有题库中没有对应题目、或需要题目之外的概念解释时，才查本区。题库能回答时不要把教材内容混入答案。",
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  "next": "A15"
}