3.复数的值是 ( ) A.-8 B.8 C.-8i D.8i 查看更多

 

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复数的值是                                                                                              

A.-8                        B.8                            C.-8i                       D.8i

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 若复数为虚数单位)是纯虚数,则实数的值为(    )

A.-8           B.-6              C..3               D.7

 

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