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Re:终于找到这道题的组合学公式，不过谁能给出证明过程？In Reply To:Re:终于找到这道题的组合学公式，不过谁能给出证明过程？ Posted by:lshguang89 at 2008-10-09 13:18:19 怎么有点出入？ Followed by: Post your reply here: |
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