實話實說，aops 都上過了，再學這些顯得非常突兀。好像數學博士生重修初中代數一樣讓人目瞪口呆

來源: 大宋於 2025-05-10 08:37:30 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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