问题 单项选择题

虚拟存储器的最大容量是由( )限制的。

A.物理内存的大小

B.外存空间和计算机地址总线宽度

C.用户地址空间大小

D.磁盘空间的大小

答案

参考答案:B

解析:[分析] 虚拟存储器是利用程序的局部性原理,一个作业在运行之前,没有必要全部装入内存,而只将当前要运行那部分页面或段装入便可以运行,其他部分放在外部存储器内,需要时再从外存调入内存中运行,首先它的容量必然受到外存容量的限制,其次寻址空间要受到计算机地址总线宽度限制。

阅读理解

第三部分:阅读理解(共15小题,每小题2分;共30分)

阅读下面短文,掌握其大意,然后从各题的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。

A

A man walks into a doctor’s office. He has a cucumber (黄瓜) up his nose, a carrot in his left ear and a banana in his right ear. “What's the matter with me?” he asks the doctor. The doctor replies, “You’re not eating properly.”

This is a popular joke among British school children. It shows Britain's famous dry and satirical (讽刺的) way of seeing the funny side of life. People say this unique sense of humor is one of Britain's national characteristics.

The British sense of humor is different from other countries because it is often more negative. When it comes to making the British laugh, there is nothing that works better than a socially inappropriate (不恰当的) joke. It reflects the culture where mocking (嘲弄) is part of everyday life.

While most Britons don’t take these jokes too seriously, foreigners often don’t understand them. A recent survey found that most foreigners who visited Britain think the British are “unfriendly and have almost no sense of humor”.

Are the British just not as funny as they think they are? Leo McKinstry, a British journalist, thinks the British are funny. “Accusing the British of having no sense of humor is like telling Rolls-Royce (劳斯莱斯) that its cars are cheap and not good in quality,” he says.

56. What does the doctor actually mean by the remark “You’re not eating properly”?

A. What you have had is the cause of these problems.   B. You are not having the right food.

C. You don’t eat the way people usually do.           D. You eat with the wrong cutlery. ( 餐具 )

57. The word “dry” in Paragraph 2 means ________.

A. without water or liquid inside                 B. special and popular among school children

C. dull and meaningless                        D. funny and clever while seeming to be serious

58. Why do most visitors, who once visited Britain, think that the British are unfriendly?

A. Because the British always take things seriously.

B. Because the British have no sense of humor.

C. Because the British are cold and difficult to get along with.

D. Because the British have a different sense of humor.

59. Which of the following is NOT the characteristics of British humor?

A. dry and satirical                             B. negative and mocking

C. encouraging and gentle                        D. clever and witty

填空题