{
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  "book_id": "B",
  "book_title": "市场调查方法与技术（第5版）",
  "book_isbn": "978-7-300-32569-9",
  "role": "参考教材",
  "publisher": "中国人民大学出版社",
  "no": 4,
  "title": "定性调查方法",
  "sections": [
    "焦点小组座谈会",
    "深度访谈",
    "民族志",
    "共创工作坊",
    "其他辅助型定性调查方法"
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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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}