产业和工作市场变更是学非所用的主要原因，中美都一样。

来源: 南门野菜于 2012-05-23 09:07:15 [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.