怪不得你知道那么多。高中的化学早就还给老师了，就剩下二氧化碳了，呵呵

来源: 迎春花于 2011-11-13 06:51:40 [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.