问题 单项选择题

在J.Martin倡导的信息工程方法实施中,将信息工程分为层次,并认为若干基础层次于后期实施是相对稳定的。以下哪个不在其论述的基础层次之列?()

A.物理数据库设计

B.主题数据库的详细数据模型

C.信息资源的战略规划

D.企业模型的建立

答案

参考答案:A

解析:

James Martin给出了企业信息工作的技术模型,参见下图。其中,第1层是企业模型的建立,第2层是信息资源战略规划,第3层是主题数据库的详细模型。“物理数据库设计”在高层,选项A为答案。

企业信息工程的技术模型 *对于处理过程、应用程序、报表生成、分布式处理和 物理实施的变化,这三层仍保持相对的稳定

问答题
单项选择题

When Dave was eighteen, he bought a secondhand car for 200 so that he could travel to and from work more (1) than by bus. It worked quite well for a few years, but then it got so old, and it was costing him (2) much in repairs that he decided that he had better (3) it.

He asked among his friends to see if anyone was particularly (4) to buy a cheap car, but they all knew that it was falling to pieces, so (5) of them had any desire to buy it. Dave’s friend Sam saw that he was (6) when they met one evening, and said, "What’s (7) , Dave"

Dave told him, and Sam answered, "Well, what about advertising it in the paper You may (8) more for it that way than the cost of the advertisement!" Thinking that Sam’s (9) was sensible, he put an advertisement in an evening paper, which read "For sale: small car, (10) very little petrol, only two owners. Bargain at 50. " For two days after the advertisement first appeared, there was no (11) . But then on Saturday evening he had an enquiry. A man rang up and said he would like to (12) him about the car. "All right, " Dave said, feeling happy. He asked the man whether ten o’clock the next morning would be (13) or not. "Fine, " the man said, "and I’ll (14) my wife. We intend to go for a ride in it to (15) it. "

The next morning, at a quarter to ten, Dave parked the car in the square outside his front door, (16) to wait there for the people who had (17) his advertisement. Even Dave had to (18) that the car really looked like a wreck. Then, soon after he had got the car as clean (19) it could be, a police car stopped just behind him and a policeman got out. He looked at Dave’s car and then said, "Have you reported this (20) to us yet, sir\

5().

A.some 

B.neither 

C.none 

D.most