中学的时候，我们天文学会初级会员都知道黑洞是怎么回事，用不到物理硕士。

来源: 洞庭秋于 2011-11-14 05:41:30 [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.