Please turn _____ the light when you leave the room.[ ]
A. off
B. on
C. up
D. down
答案:A
阅读下面程序,则程序的执行结果为 【9】 。#include"stdio.h"main() int a=30,b=20,z; z=fun(a+b,a-b); printf("%d\n",z);fun(int a,int b) int z; z=a/b; return z;
传媒经济中应该考虑的生产与成本?