单选题：下列条件语句中，功能与其他语句不同的是

下列条件语句中，功能与其他语句不同的是 @[D](2)
A. if (a)printf(" %d\n", x); else printf(" %d\n", y);
B. if (a == 0)printf(" %d\n", y); else printf(" %d\n", x);
C. if (a != 0)printf(" %d\n", x); else printf(" %d\n", y);
D. if (a == 0)printf(" %d\n", x); else printf(" %d\n", y);





A.if (a)printf(" %d\n", x); else printf(" %d\n", y);
B.if (a == 0)printf(" %d\n", y); else printf(" %d\n", x);
C.if (a != 0)printf(" %d\n", x); else printf(" %d\n", y);
D.if (a == 0)printf(" %d\n", x); else printf(" %d\n", y);


答案：D