问题 填空题

分时操作系统采用______的方式处理用户的服务请求,允许多个用户联机地使用计算机。

答案

参考答案:时间片轮转 分时系统采用时间片轮转的方式处理用户的服务请求。因此每个用户都仿佛“独占”了整个计算机系统。

选择题
阅读理解

阅读理解。

    Not many years ago, a wealthy and rather strange old man named Johnson lived alone in a village

in the south of England. He had made a lot of money in trading with foreign countries. When he was

75, he gave ?12,000 to the village school to buy land and equipment for a children's playground.

   As a result of his kindness, many people came to visit him. Among them was a newspaperman. During

their talk, Johnson remarked that he was 75 and expected to live to be 100, and the newspaperman

asked him how he managed to be healthy at 75. Johnson had a sense of humor. He liked whisky and

drank some each day. "I have an injection(注射)in my neck each evening", he told the newspaperman,

thinking of his evening glass of whisky.

    The newspaperman did not understand what Johnson meant. In his newspaper he reported that Johnson was 75 and had a daily injection in his neck. Within a week Johnson received thousands of letters from

all over Britain, asking him for the secret of his daily injection.

1. Johnson became a rich man through _____.

A. doing business    

B. making whisky    

C. cheating  

D. buying and selling land

2. The gift of money to the school suggests that Johnson ____.

A. had no children      

B. was a strange man  

C. was very warm-hearted and fond of children

D. wanted people to know how rich he was

3. Many people wrote to Johnson probably to find out ____. 

A. what kind of whisky he drank

B. how to live alone

C. how to become wealthy

D. in which part of the neck he had an injection each day

4. When Johnson said he had an injection in his neck each evening, he really meant that ____ 

A. he liked drinking a glass of whisky in the evening

B. he needed an injection in the neck

C. a daily injecting in the evening would make him sleep well

D. there was something wrong with his neck

5. From the passage we can infer that Johnson would be very ____ after he read those people's letters.

A. miserable      

B. glad      

C. surprised      

D. said