试题与答案

分时操作系统的主要特征之一是提高了 (13) 。实现不同的作业处理方式(如批处理、分

题型:单项选择题

题目:

分时操作系统的主要特征之一是提高了 (13) 。实现不同的作业处理方式(如批处理、分时处理、实时处理等),主要是基于操作系统 (14) 。一般来说,用户可以通过两类接口请求操作系统的服务,一类是作业一级的接口(如命令语言、JCL等);另一类是编程接口,即提供一组 (15) ,供实用程序、应用程序与用户程序等请求操作系统的服务。通常,文件的逻辑结构可以分为两大类:无结构的 (16) 和有结构的记录式文件。 (17) 组织方式既适合于交互方式应用,也适合于批处理方式应用。

A.程序编辑
B.特权操作
C.系统调用
D.进程调度

答案:

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1. chicken  2. do……homework  3. cabbage  4. brush……teeth  5. muscle  6. onions答案不唯一

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题型:阅读理解

Until a century ago, bloodletting was used to treat many ailments. Dating back to before the time of Christ, the treatment involved letting a type of worm, called a leech, such blood from the patient. People believed that there were liquids called humors in the body and that these determined a person’s personality and heath. Bloodletting, they thought, restored a balance to these humors.

At the time, little was known of the working of the human body, but people did know that the same liquid, blood, flowed throughout everyone’s body. They knew it was a vital substance, for loss of any great amount of it meant certain death. Thus, they concluded that all diseases were carried in the bloodstream, and that if the body was relieved of bad blood, heath would return. Bloodletting, however, came to be used as a cure-all. Woman were bled to keep them from blushing while members of the clergy were bled to prevent them from thinking sinful and worldly thoughts.

From the 11th to the 18th centuries, barbers were the people to go to if you needed to be bled. This custom explains the significance of the traditional barber’s pole: the white stripes stand for bandages and the red stripe for blood.

1. This passage is concerned about            .

healthy people and doctors                         B. bleeding as a cure-all

C. barbers of long ago                                      D. leeches with special jobs to do

2. The red and white stripes on barber pole symbolize         .

sin and redemption                             B. the bleeding form

C. women who are nurses                                  D. humors in the body

3. Why is bloodletting no longer considered a cure-all?

Because more is known about the workings of the human body.

Because leeches were outlawed

Because barbers were too busy cutting hair.

Because today we know that blood is necessary for health

4. In the second paragraph, the word “Thus” could be replaced by the word       .

A. When                        B. However                  C. If                            D. So

5. Ailments means           .

A. cures                         B. women                     C. disease                     D. medicines

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