依照普遍接受的大爆炸理論，宇宙並不是無窮無盡的，起源是個問題。

來源: 欲千北於 2015-07-25 09:46:28 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.