回复：发现化学已经忘一干二净了,只认识H2O. :D

来源: europe 于 2012-04-26 14:47:47 [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.