21）下列程序执行后的输出结果是 main() { int a[3][3], *p,i; p=&a[0][0]; for(i=1; i

25）下面判断正确的是 (A)char *a="china";等价于 char *a;*a="china"; (B)char str[5]={"china"};等价于char str[]={"china"}; (C)char *s="china";等价于 char *s;s="china"; (D)char c[4]="abc",d[4]="abc";等价于char c[4]=d[4]="abc";