他沒基礎。朋友有的有基礎。他是開學才開始刷題的。不過他之前在學校做過research project，自己開發過app

來源: Amita 於 2024-11-22 12:08:36 [舊帖] [給我悄悄話] 本文已被閱讀：次

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