1+1=2， 1+1=3，1+1=10， 1+1=1。。。都成立。關鍵在於定義。。

來源: 2ndglance 於 2016-06-07 12:55:49 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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