线下调查的样本不可避免也会有选择性偏差。任何统计结果都只能在一个适用范围内解读，所以我一直说这个opinion.

来源: BeyondWind 于 2024-08-30 05:53:55 [旧帖] [给我悄悄话] 本文已被阅读：次

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