我不信你能比可汗讲得好，但你能让孩子比学可汗能做题我信，差别就是可汗是推导公式让你理解，快速做题是背公式

来源: gpu 于 2025-01-16 15:31:36 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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