以下关于switch语句和break语句的描述中正确的是( )
A. 在switch语句中必须使用break语句
B. break语句只能用于switch语句体中
C. break语句只能用于循环语句中
D. 在switch语句中可以不使用break语句
查看答案
下列程序段的输出结果是#include int main(void){int m, k = 0, s = 0;for (m = 1; m <= 4; m++) {switch (m % 4) {case 0:case 1: s += m; break;case 2:case 3: s -= m; break;}k += s;}printf("%d\n", k);return 0;}
A. 10
B. -2
C. -4
D. -12
同一个世界同一个梦想正确的译文是____?
A. One World One Dream
B. One Word One Dream
C. One World A Dream
D. A World The Dream
Sound travels____thanlight.
A. slow
B. slower
C. slowest
D. slowly
Do you know anything ____ basketball stars?
A. for
B. in
C. about
D. by