A、operator+(operator*(X,Y),z)
B、x.operator+(operator * (x,y),Z)
C、Y.operator * (operator+(x,Y),z)
D、x.operator+(operator{(X,Y))
A、operator+(operator*(X,Y),z)
B、x.operator+(operator * (x,y),Z)
C、Y.operator * (operator+(x,Y),z)
D、x.operator+(operator{(X,Y))