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+A-

Yep, I've tried 3 different number for 3 people

ZoyaWashington 2013-04-14 21:16:09 ( reads)

It is correct every time.

跟帖(2)

ZoyaWashington

2013-04-14 21:26:12

Here is why

加州花坊

2013-04-15 07:49:43

谢谢啊，我数学是维一得过一次2分的，上高数时时常睡着。