问题 单项选择题

对计算机操作系统的作用描述完整的是______。

A) 管理计算机系统的全部软、硬件资源,合理组织计算机的工作流程,以充分发挥计算机资源的效率,为用户提供使用计算机的友好界面
B) 对用户存储的文件进行管理,方便用户
C) 执行用户键入的各类命令
D) 是为汉字操作系统提供运行的基础

答案

参考答案:A

解析: 操作系统是人与计算机之间通信的桥梁,为用户提供了一个清晰、简洁、易用的工作界面,用户通过操作系统提供的命令和交互功能实现各种访问计算机的操作。

阅读理解

阅读理解。

     Long ago there was a little boy who wanted to be soldier more than anything else in the world. His

brothers ere and sisters played other games while he was playing soldier.

     Later he went to a military (军事) school and studied very hard. When he was less than eighteen,

he became a soldier. But the small man wanted power (权力). He wanted to tell people and nations and

the whole world what to do. He kept on working and studying! until he became a general in the French

Army.

     His name was Napoleon Bonaparte, and he finally became Emperor of France. He was famous and

as emperor, and for a while he won all the wars and became a national hero, but he was not a kind man.

He could be charming (迷人的) when he wanted to be But he was also rude and very cruel, and many

people died so that he could win his wars.

     Napoleon did one thing that was very important to the United States. He sold a huge piece of land in

North America to the United States and got a lot of money and he could go on fighting a war with England.

And Napoleon rose to great power.

     Then things began to go bad for him. In June of 1815 he lost the Battle of Waterloo to England, and his

days of power and greatness were suddenly over. And six years later he died on a far rock island.

1.The little boy wanted to be a soldier, so _____.

A. he didn't play with his brothers

B. he read a lot of military books

C. he often played soldier alone

D. he joined army when he was young

2. Napoleon studied hard in the military school, because _____.

A. he wanted to be a general

B. he wanted to get much money

C. he hoped to win the Battle of Waterloo

D. he hoped to dominate (主宰) the world.

3.The French regard Napoleon as national hero because _____.

A. he won all the wars for a while.

B. he became Emperor of France

C. he became a famous general.

D. he was kind to the people

4. Napoleon sold the land to the United States in order to _____.

A. fight the war with England

B. make his family richer

C. give some money to his people

D. build a huge palace for himself

5. Napoleon died in _____.

A. 1815

B. 1821

C. 1822

D. 1927

单项选择题