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已知复数(a,bR,i为虚数单位)满足,则 ( )
A.a=0,b=0 B.a=0,b0 C.a0,b=0 D.a0,b0
已知复数(a,bR,i为虚数单位)满足,则( )
A. a=0,b=0 B. a=0,b0 C. a0,b=0 D. a0,b0