问题
单项选择题
操作系统的功能是
A．将源程序编译成目标程序
B．负责诊断机器的故障
C．控制和管理计算机系统的各种硬件和软件资源的使用
D．负责外设与主机之间的信息交换
答案
参考答案：C
解析：操作系统是管理控制和监督计算机各种资源协调运行的。
搜题请搜索小程序“爱下问搜题”
操作系统的功能是
A．将源程序编译成目标程序
B．负责诊断机器的故障
C．控制和管理计算机系统的各种硬件和软件资源的使用
D．负责外设与主机之间的信息交换
参考答案：C
解析：操作系统是管理控制和监督计算机各种资源协调运行的。
| 阅读对话，从每题A、B、C、D四个选项中，选出一个最佳答案完成对话。 | ||||
| A: Hi, Li Tao! Could you please tell me something about your new pen pal? B: 1______ A .Thanks. What's his name? B: His name is Richard Evans and he's living with his parents in Hangzhou now. A: Uh-huh. Where is he from? B: He comes from Canada. Richard was born in Toronto. A: Uh-huh. 2______ B: He's 15 years old. A: 3______ B: Oh, he speaks English and French, and he says he is learning Chinese now. A: Really? Many foreigners think Chinese is a difficult language. 4______ B: Yes, he does. But he works very hard at it. His family are going back to Canacla this July. He has invited me to take a vacation there and he can learn Chinese from me by the time, A: How cool! Have you decided to go? B: Yes, I have. 5______ | ||||
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