河里原来有34只鸭,游来了13只,又游来了21只,现在有多少只鸭?
34+13+21=68(只)
I'll wait here he comes to see me. [ ]
A. after
B. until
C. while
D. as soon as
以下程序运行后的输出结果是 【15】 。int f (int a[],int n){ if(n>=1) return f(a,n-1)+a[n-1]; else return 0; } main() { int aa[5]={1,2,3,4,5},s; s=f(aa,5); printf("%d\n", s);}