激動，小學數學題解2答案：5x6-2x3=6x7-2x9=24, 祥見腦筋急轉，今夜無眠。。

來源: 不愛數字於 2012-11-16 05:42:44 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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