【单选题】【消耗次数：1】
操作系统可以定义为（ ）。
①
与计算机硬件紧密相关的一层系统软件
②
建立和使用通信硬件和软件的一套规则和规范
③
执行计算机数据处理的软件模块
④
一套计算机硬件管理规范
参考答案：
复制
纠错
相关题目
【单选题】
计算机的系统软件中，管理计算机中所有的硬件资源和软件资源、控制计算机中程序的执行的是______。
①
数据库管理系统
②
各种语言及其处理程序
③
操作系统
④
系统支持和服务程序
随机题目
【单选题】
11.You can get the best effect by_____ the volume during playback..
①
adjusting
②
. changing
③
adjusting to
④
making
【单选题】
25. Do you remember when Mark and Julie came over and had that terrible row? That was ______ day I wouldn’t want to go through again.
①
the
②
a
③
/
④
one
【单选题】
16. I have been climbing _____ Alps, But I never managed to get up_____ Mont Blanc.
①
the, /
②
. /, the
③
The, the
④
The, a
【单选题】
13. He _____ a doctor when his mother was ill.
①
sent for
②
invited
③
sent in
④
. sent away
【单选题】
15. _____ Yellow River is_____ second largest river in China.
①
The, /
②
. /, the
③
The, the
④
The, a
【单选题】
30.We heard the news on _____ radio. They watched the news on _____ television.
①
the ;/
②
a;/
③
/ ;the
④
one;/
【单选题】
6.The university has introduced a new _______ of conduct on university life.
①
discipline
②
. code
③
key
④
. principle
【单选题】
7.We could see he felt ______ as he pointed and laughed at them.
①
inferior
②
. stupid
③
superior
④
advanced