不要把无知当有才，我本人在美国是数学教授。

来源: Blatant 于 2016-01-17 03:00:04 [旧帖] [给我悄悄话] 本文已被阅读：次

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