單項(xiàng)選擇題

以下程序運(yùn)行后輸出結(jié)果是()
#define F(m, n) m*n
Main()
{int x=5, y=3, a1, a2;
a1=F(x+y, x-y) ;
a2=F(x-y, x+y) ;
printf(" %d, %d\n, a1, a2" ) ; }

A.16,16
B.16,-16
C.-7,17
D.17,-7


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