恩格斯自学过物理，达到中学水平。学习态度不错。

来源: 不开窍于 2021-06-26 07:12:14 [旧帖] [给我悄悄话] 本文已被阅读：次

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恩格斯自学过物理， 达到中学水平。学习态度不错。