大量中间的普通学生基础非常差。但是大量美国人不需要考数学吃饭。

来源: greenoasis 于 2017-10-02 18:49:07 [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.