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把几个操作都测试一下，就不容易出错了。内详。In Reply To:可以用置换群求循环节来解决这题 Posted by:yygy at 2014-07-19 16:26:24 4 id- id 4 rot- rot 4 sym- sym 4 bhsym- bhsym 4 bvsym- bvsym 4 div- div 4 mix- mix Followed by: Post your reply here: |
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