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Re:3716谁给个推导过程?

Posted by huicpc1117 at 2009-02-22 18:18:22
In Reply To:3716谁给个推导过程? Posted by:timeloop at 2009-02-22 17:14:17
> 听某人说公式是(a+b+10)/7但是完全不知怎么推的,又是为什么,谁说说啊?
有公式啊?我是纯暴力的。。。

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