MS-DOS的操作系统的命令如何分类？_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题问答题简答题

MS-DOS的操作系统的命令如何分类？

答案

参考答案：MS-DOS分为内部命令、外部命令和批处理命令三大类。

内部命令：是指包含在DOS的COMMAND.COM程序中的命令。

外部命令：是指独立于DOS之外的有名的文件，它的执行依赖于存储在磁盘中的命令文件。

批处理命令：可自动按先后顺序执行批处理文件中的命令

阅读理解

阅读理解。

1. How does my uncle go home?

A. By bike.

B. By bus.

C. By car.

D. On foot.

2. When does my uncle get up?

A. In the morning.

B. In the afternoon.

C. In the evening.

D. At 18:00 p.m.

3.Where does my uncle play with his dog?

A. In the garden.

B. In the park.

C. At home.

D. In the street.

4. When does my uncle have supper?

A. At 6:45 a.m.

B. At 16:00 p.m.

C. At 18:00 p.m.

D. At 19:00 p.m.

5. How many hours does my uncle work every day?

A. 8 hours.

B. 7 hours.

C. 6 hours.

D. 9 hours.

单项选择题

探放老空水前，探放水人员首先应了解老空水体的空间位置，积水量和（）。

A.PH值

B.水位标高

C.水温

D.水压