毛时代人均预期寿命的阶梯式提高是因为普及了卫生消毒习惯和普及使用抗生素和疫苗，这不是单纯医学进步的结果，更重要是执行力。

来源: 方外居士于 2025-05-18 17:21:37 [旧帖] [给我悄悄话] 本文已被阅读：次

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