假如一條直線有五個西瓜，之後把直線二等分成兩個直線（如用Euclid的方法）。它們的長度應該是幾個西瓜？

來源: youdecide 於 2023-12-25 12:03:22 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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