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若复数满足,则=( )
A. B. C. D.
若复数满足,则的虚部为( )
A. B.- C.4 D.-4
若复数满足,则在复平面内对应的点的坐标是( )
(A), (B),
(C), (D),
若复数满足,则在复平面内对应的点的坐标是( )