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Re:只是对角线的长度和吗？？四边形是否还会是凹的，或者是退化的呢？【BIT】In Reply To:只是对角线的长度和吗？？四边形是否还会是凹的，或者是退化的呢？【BIT】 Posted by:1120101780 at 2011-11-22 00:57:57 发现自己错了，凹的没仔细~~~~ Followed by: Post your reply here: |
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