2.= ( ) A.- B.i C.1 D.-1 查看更多

 

题目列表(包括答案和解析)

计算:=                                                                              

A.-                        B.i                            C.1             D.-1

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[  ]

A.1
B.0
C.I
D.-i

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[    ]

A.-1+i    B.-1-i

C.0      D.1

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[  ]

A.0
B.1
C.-1
D.i

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=                        (    )

       A.1          B.-1           C.i               D.-i

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