【单选题】已知float x=2.23,y=4.35;,根据下面的输出结果,正确的程序段是( )。x=2.230000,y=4.350000y+x=6.58,y-x=2.12
A.
printf("x=%8.2f,y=%8.2f",x,y); printf("y+x=%4.2f,y-x=%4.2f\n",y+x,y-x);
B.
printf("x=%8.6f,y=%8.6f\n",x,y); printf("y+x=%4.2f,y-x=%4.2f\n",y+x,y-x);
C.
printf("x=%7.2f,y=%7.2f\n",x,y); printf("y+x=%3.2f,y=%3.2f\n",y+x,y-x);
D.
printf("x=%f,y=%f\n",&x,&y); printf("y+x=%f,y=%f\n",y+x,y-x);