对不起，霍金已经数次否认黑洞的存在。请看联接。

来源: 科普闲谈于 2016-01-02 16:43:34 [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.