下列程序的輸出結(jié)果為(). main() {int m=7,n=4; float a=38.4,b=6.4,x; x=m/2+n*a/b+1/2; printf("%f\n",x); }
A.27.000000 B.27.500000 C.28.000000 D.28.500000
A.15 B.3 C.2 D.非法表達(dá)式
A.float B.char C.int D.double