如果大烧杯中盛的是酒精或水银，又有何不同呢？

来源: 皆兄弟也于 2010-10-16 10:17:07 [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.