I know 1+1=2

来源: jjj7 于 2012-06-25 12:03:32 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (99 bytes)

if I ask what's 1+1=? (phd graduate question), nobody answers.

I will answer 1B, 2A.

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