问题 单项选择题

判定树和判定表是用于结构化分析方法中哪个环节的工具()

A.功能说明

B.数据加

C.流程描述

D.性能说明

答案

参考答案:B

解析:

结构化分析方法是首先将系统逐层分解到基本加工,然后为每个基本加工写上加工说明。加工说明应该严格精确,容易被软件设计人员和用户理解。结构化分析方法在精确性和可理解性之间进行了折中。判定表和判定树一样,是一种在数据加工时使用的描述组合条件的一种组合方法。

阅读理解

Dr.Ferguson energetically pushed the preparations for his departure,and in person directed the construction of his balloon.For a long time past he had been applying himself to the study of the Arab language and the various Mandingoe idioms,and,thanks to his talents in language,he had made rapid progress.

In the meanwhile,his friend,the sportsman,never let him out of

his sight-afraid,no doubt,that the doctor might take his departure,without saying a word to anybody.On this subject,he tried to discourage him with the most persuasive arguments,which,however,did NOT persuade Samuel Ferguson,and wasted his breath,by which the latter seemed to be but slightly moved.In fine,Dick felt that the doctor was slipping through his fingers.

The poor Scot was really to be pitied.He could not look upon the

blue sky without a wild terror: when asleep,he felt dizziness(眩晕)that made his head turn around;and every night he had visions of crashing down from immeasurable heights.

We must add that,during these nightmares,he once or twice fell out of bed. His first care then was to show Ferguson a severe bump(肿块)that he had received on the fall.“And yet,”he

would add,with warmth,“that was at the height of only three feet一not an inch more一and such a bump as this! Only think,then!”

This appeal,full of sad meaning as it was,did not seem to touch the doctor's heart.Not even the shadow of a doubt was ever suggested;and Samuel made an intolerable misuse of the first person plural:“‘Our’balloon,‘our’ car ;‘our’expedition.”

Dick trembled at them,although he was determined not to go ; he did not want to annoy his friend.Let us also disclose the fact that,without knowing exactly why himself,he had sent to Edinburgh for a certain selection of heavy clothing,and his best hunting-tools and fire-arms.

小题1:Why did Dr.Ferguson start to learn new languages?

A.To keep himself occupied.

B.To get ready for the departure.

C.To show his talent in language.

D.To Know more about balloon construction.小题2:We Call infer from the passage that Dick ____.

A.suffered from a disease during the nights

B.got hurt in a fall from the balloon in the evening

C.decided to take the adventure with the doctor at last

D.equipped himself with arms to frighten his friend小题3:Which word best describes Dr.Ferguson’s attitude towards his balloon flight?

A.Excited.

B.Optimistic.

C.Worried.

D.Determined小题4:What’s the writing pattern of the passage?

A.News.

B.Fiction.

C.Journal.

D.Biography.

单项选择题