The animation Man shows that humans did all of the following except _____________.
A. exploiting animals to meet their various needs
B. contaminating the environment by making tons of trash
C. viewing themselves as the rightful king on the planet
D. protecting the earth from being destroyed by the aliens
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IEEE802.11工作组制定的802.11gWLAN理论无线速率标准( )。
A. 2Mbit’s
B. 11Mbit’s
C. 600Mbit’s
D. 54Mbit’s
若有如下定义,int a[10]={1,2,3,4,5,6,7,8,9,10},*p=&a[3],b=p[5];则b的值是( )。
A. 5
B. 6
C. 8
D. 9
如果下列程序正常运行,则当从键盘输入字母A时,输出结果为( )。#include main(){char ch;ch=getchar();switch(ch){case 65: printf(“%c”, ‘A’);case 66: printf(“%c”, ‘B’);default: printf(“%s”, “other”);}}
A
B. AB
C. ABother
D. 不确定
一般对于无线信号有较强衰减作用的障碍物是
A. 金属
B. 玻璃
C. 钢筋混凝土
D. 木门