跳出了自己狭义的思维范围才能明白这句话的科学含义，物理意义。

来源: 孩子长了翅膀于 2012-11-28 09:30:47 [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.