可下面的人都说照葫芦画瓢就行.

来源: expectingMM 于 2012-11-12 20:23:31 [旧帖] [给我悄悄话] 本文已被阅读：次

我想等到学偏微分方程时, 照葫芦画瓢都不好画呀.

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