问题 单项选择题

企业经常要对收集的原始数据进行处理,数据处理的目的不包括()

A.增加信息量

B.变换数据形式使其便于进一步处理

C.便于使用者检索

D.为管理人员提供决策支持

答案

参考答案:A

解析:

数据处理是按一定目的,用一定手段将所获得的原始信息进行加工处理。数据处理的目的是把信息的原始形式变换成便于观察、分析、查找、传递或易于进一步处理的形式;经过筛选分类、提取过滤和编辑整理,提高信息的质量;对数据进行加工计算、分离和选择,为管理人员提供管理、控制的依据;将经过处理的数据存储起来,以便于使用者检索;发布、销售数据,供客户使用。数据处理遵循"信息不增原理",即数据信号的任何处理、提炼都不能使信息量增加;相反,处理的结果常常会损失一些信息量,处理的环节和次数越多,损失的机会就越大。对有些用户来说,最关心的是处理结果是否有用、有价值,不管是否损失了信息量。例如,对某个班级的考试成绩经过数据处理后,获得了平均值、最高与最低值。虽然损失了信息量,但领导看了觉得很有用。

单项选择题
阅读理解

My newly-rented small apartment was far away from the centre of London and it was becoming essential for me to find a job, so finally I spent a whole morning getting to town and putting my name down to be considered by London Transport for a job on the underground. They were looking for guards, not drivers. This suited me. I couldn’t drive a car but thought that I could probably guard a train, and perhaps continue to write my poems between stations. The writers Keats and Chekhov had been doctors. T.S. Eliot had worked in a bank and Wallace Stevens for an insurance company. I’d be a subway guard. I could see myself being cheerful, useful, a good man in a crisis. Obviously I’d be overqualified but I was willing to forget about that in return for a steady income and travel privileges — those being particularly welcome to someone living a long way from the city centre.

The next day I sat down, with almost a hundred other candidates, for the intelligence test. I must have done all right because after about half an hour’s wait I was sent into another room for a psychological test. This time there were only about fifty candidates. The interviewer sat at a desk. Candidates were signaled forward to occupy the seat opposite him when the previous occupant had been dismissed, after a greater or shorter time. Obviously the long interviews were the more successful ones. Some of the interviews were as short as five minutes. Mine was the only one that lasted a minute and a half.

I can remember the questions now: “Why did you leave your last job?” “Why did you leave your job before that?” “And the one before that?” I can’t recall my answers, except that they were short at first and grew progressively shorter. His closing statement, I thought, revealed (揭示) a lack of sensitivity which helped to explain why as a psychologist, he had risen no higher than the underground railway. “You’ve failed the psychological test and we are unable to offer you a position.”

Failing to get that job was my low point. Or so I thought, believing that the work was easy. Actually, such jobs — being a postman is another one I still desire — demand exactly the sort of elementary yet responsible awareness that the habitual dreamer is least qualified to give. But I was still far short of full self-understanding. I was also short of cash.

小题1:The writer applied for the job chiefly because _________.

A.he wanted to work in the centre of London

B.he could no longer afford to live without one

C.he was not interested in any other available job

D.he had received some suitable training小题2:The writer thought he was overqualified for the job because _________.

A.he often traveled underground

B.he had written many poems

C.he could deal with difficult situations

D.he had worked in a company小题3:The length of his interview meant that _________.

A.he was not going to be offered the job

B.he had not done well in the intelligence test

C.he did not like the interviewer at all

D.he had little work experience to talk about小题4:What does the writer realize now that he did not realize then?

A.How unpleasant ordinary jobs can be.

B.How difficult it is to be a poet.

C.How unsuitable he was for the job.

D.How badly he did in the interview.小题5:What’s the writer’s opinion of the psychologist?

A.He was very aggressive.

B.He was unhappy with his job.

C.He was quite inefficient.

D.He was rather unsympathetic.