Stephen Hawking is a brilliant theoretical physicist,cosmologist

來源: 紫君 於 2012-11-26 20:28:27 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (195 bytes)

Stephen Hawking is a brilliant theoretical physicist,cosmologist and author.

http://en.wikipedia.org/wiki/Stephen_Hawking

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