也就是说，前三种属于自娱自乐，第四种情况属于有一定的资格学习做科研初阶，只有第五种情况，才是真正的做科研！

来源: sanshengshishang2 于 2025-09-07 13:06:22 [旧帖] [给我悄悄话] 本文已被阅读：次

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