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复数的值是( )
A.4i B.-4i C.4 D.-4
复数的值是
A.4i
B.-4i
C.4
D.-4
4i
-4i
4
-4
复数满足x+yi(x,y∈R)满足|z-4i|=|z+2|,则2x+4y的最小值是
2