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Re:问个 问题:

Posted by JiaJunpeng at 2014-04-13 19:14:03 on Problem 4053
In Reply To:Re:问个 问题: Posted by:Los_Angelos_Laycurse at 2014-04-13 17:55:23
> 我 是按照两者无关 写的,不知道对不对,物理学的不好,不会受力分析和运动状态分析,题目又不交代。。。。
终于A了 ,那个是无关的,直接按公式求速度就行了,犯了N多2B的错误,一如既往的菜啊。。。

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