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Re:谁解释一下最后一个为什么是0.00?

Posted by daofeng at 2004-10-06 17:35:10 on Problem 1871
In Reply To:谁解释一下最后一个为什么是0.00? Posted by:T3 at 2004-10-06 09:03:12
子弹的轨迹是条射线
不是直线

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