b3b2的精选

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下列运算正确的是(  )A.b5÷b3=b2                                 ...

下列运算正确的是(  )A.b5÷b3=b2                                 ...

2019-10-26
问题详情:下列运算正确的是()A.b5÷b3=b2                                           B.(b5)2=b7C.b2•b4=b8                               ...