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用3个0和1,2,3,4这七个数字组成七位数.(全部)
人气:418 ℃ 时间:2019-10-20 20:01:48
解答
1000234,1000243,1000324,1000342,1000423,1000432,1002034,1002043,1002304,1002340,1002403,10024301003024,1003042,1003204,1003240,1003402,1003420太多了...自己找规律吧
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