九十年代遇到一個Univ of Wisconsin的數學博士後, 他說他們大學的最低數學課還教 7 + 8 = ？

來源: BeLe 於 2025-11-30 08:10:17 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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