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对任一排列施行偶数次对换后,排列的奇偶性不变
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对任一排列施行偶数次对换后,排列的奇偶性不变
A、正确
B、错误
时间:2021-09-02 13:15
关键词:
安徽教育在线
安徽科技学院
高等数学
答案解析
A
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