黑白的比较纯，谢谢指点。

来源: 幼儿园小三班于 2012-01-02 11:06:09 [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.