2x27的精选

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若1(2x)=1x,则代数式2x27的值是                              (   ...

若1(2x)=1x,则代数式2x27的值是                              (   ...

2022-01-04
问题详情:若1(2x)=1x,则代数式2x27的值是                              (    ) A.5           B.5              C.1              D.1【回答...