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【多选题】
以下关于小区制移动通信系统表述正确的是（ ）。A.
小区制移动通信是将服务区划分成若干个小区，每个小区设置一个基站
B.
单个小区的覆盖半径有限
C.
需要设置移动交换中心，负责小区间的通信和移动网与有线网的连接
D.
小区制移动通信系统中需采用频率复用技术
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【简答题】代表标准输入设备, 代表标准输出设备。
【单选题】The boy had no interest in anything other than computer games, which was getting on their ______.
A.
nerves
B.
spirits
C.
mind
D.
soul
【简答题】C++ 中使用( )作为标准输入流对象,通常代表键盘,与提取操作符( )连用;使用( )作为标准输出流对象,通常代表显示设备,与( )连用。
【单选题】She is continually () her position/authority by getting other people to do things for her.
A.
abusing
B.
teasing
C.
using
D.
tempting
【单选题】The two girls are getting on very well and share __ with each other.
A.
little
B.
much
C.
some
D.
none
【单选题】Bash的标准输入输出中,文件描述编号0代表以下哪个设备文件:
A.
/dev/stdin
B.
/dev/stdout
C.
/dev/stderr
D.
/dev/null
【单选题】According to the scientists, it is possible for the primitive life to develop on other planets because the primitive life______.
A.
is the earliest life on earth.
B.
could be reserved in fossils.
C.
flourished on some 3. 4 billon years ago.
D.
can quickly develop into various forms.
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