说明数学这个东西着实不是很重要。

来源: 有些话不得不说于 2012-08-30 13:05:49 [博客] [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.