问题 填空题

在面向数据流的设计方法中,一般定义了一些不同的映射方法,利用这些方法可以把 【5】 变换成软件结构。

答案

参考答案:数据流图

解析:【命题目的】本题考查软件系统设计中面向数据流的设计方法。【解题要点】在需求分析阶段,主要是分析信息在系统中加工和流动的情况。面向数据流的设计方法定义了一些不同的映射方法,利用这些映射方法可以把数据流图变换成软件结构。

单项选择题

Right is right. Right7 Of course. But is left wrong Well, the Romans used to think so. They thought left-handed people were mistakes of nature. Latin, the language of the Romans, had many words that expressed this view. Some words we use today still have this meaning. The Latin word "dexter" means "right". The English word "dexterous" comes from this word. It means "handy" (clever with hands). So, right is handy. But the Latin word for left is "sinister". The English word "sinister" comes from this word. Sinister means "evil" (very bad). Is it fair to call right-handed people handy and left-handed people evil Well, fair or not, many languages have words that express such beliefs. In old English, the word for left means "weak". That isn’t much of an improvement over "evil".

Not very long ago, children were often forced to write with their right hands. Doctors have since found that this can be very harmful. You should use the hand you were born to use.

People who use their left hands are just starting to get better treatment. But why they get all these bad names in the first place One reason may be that there are not as many left-handed people as there are right-handed people. There is one left-handed person for every five right-handed ones. People who are different are often thought to be wrong. But attitudes do seem to be changing. Fair-minded right-handed people are finally starting to give left-handed people a hand.

The last sentence of this article means()

A. fair-minded right-handed people want to change the habit of the left-handed people

B. fair-minded right-handed people are starting to help the left-handed people

C. fair-minded right-handed people are starting to use left hand to write and so on

D. fair-minded right-handed people are starting to give up using their left hands

单项选择题