顶！very good point！再重申一点：数据的真实性是统计的前提。

来源: 老看客于 2012-08-26 10:54:29 [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.