回複：按那換蛋（不是混蛋）叫獸的理論，沒有Ball的豈不萬壽無疆了？

來源: havetospeakout 於 2010-09-17 20:28:12 [舊帖] [給我悄悄話] 本文已被閱讀：次

難說——零不能做被除數

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