我不信你能比可汗講得好，但你能讓孩子比學可汗能做題我信，差別就是可汗是推導公式讓你理解，快速做題是背公式

來源: gpu 於 2025-01-16 15:31:36 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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