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定义函数:double fun() { ...... },下列调用正确的语句是()。
A.int x = fun();
B.float x = fun();
C.double x = fun();
D.double x = function();
A.int x = fun();
B.float x = fun();
C.double x = fun();
D.double x = function();
A、void f ( double , int );
B、int f (int , int );
C、int f ( double , double );
D、void f ( double , int , int );
A.fun(int y,double m);
B.k=fun(10,12.5);
C.fun(x,n);
D.void fun(n,x);
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