听说有个“圆周定律”，不是一千位，而是十万元，如果有人能驳倒的话....

来源: π 于 2011-03-11 20:36:43 [旧帖] [给我悄悄话] 本文已被阅读：次

听说有个“圆周定律”，不知道是神马东东：

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