截至20世纪90年代,世界城市人口已达到总人口的( )。
A.80%
B.60%
C.45%
D.35%
参考答案:C
—Mom. I'm so tired.I can't walk any further.
—________, my dear. You can make it.[ ]
A. Come on
B. No worry
C. That's impossible
D. No problem
以下程序的运行结果是______。 int x; main() int a=5,b=8; swap(a,b) ; printf("a=%d,b=%d,x=%d\n",a,b,x); swap(int a,int b) int temp;temp=a;a=b;b=temp;x=a/b;printf("x=%d\n",x);