3.若= ( ) A.1 B.-1 C.2 D.-2 查看更多

 

题目列表(包括答案和解析)

=                                       

A.1                            B.―1                        C.―2                         D.2

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=                                       

A.0                            B.1                            C.2                            D.0或2

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A.1                            B.2                            C.                       D.―2

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 若,则(   )

A.1            B.-1             C.2               D.-2

 

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,则 (    )

A.0                B.1                C.2                D.3

 

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