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Re:这题比较特殊，可以通过行的和或者列的和来判断在哪一列，太妙了。In Reply To:Re:这题比较特殊，可以通过行的和或者列的和来判断在哪一列，太妙了。 Posted by:zck921031 at 2013-10-02 23:36:31 > 这是有一定概率出错的。。 额，由于题目的特殊条件，右乘一个单位向量是可以确定的，没有错误的概率。。。 Followed by: Post your reply here: |
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