[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

教材教辅、专业书、绝版书优先选支持ISBN扫码估价的平台(如多抓鱼、孔夫子),畅销小说通用平台按斤回收更亏;ISBN库覆盖率<80%的平台无法收冷门书

1
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85%
Confidence
Long-term
Relevance
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