楼主说的是单不单纯，纯度有多大的问题。

来源: 凸于 2009-09-10 18:22:09 [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.