看來人生不學統計學是很可悲可憐的。

來源: 解剖刀刀於 2013-06-18 20:37:38 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.