我不大清楚化學和化工的差別，關鍵在你的研究領域，通常

來源: xiaobaitu 於 2007-02-10 15:16:31 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

沒有大的出入就不需要擔心

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.