问题 单项选择题

2010年5月第20题采用面向对象方法开发软件的过程中,抽取和整理用户需求并建立问题域精确模型的过程叫()。

A.面向对象测试

B.面向对象实现

C.面向对象设计

D.面向对象分析

答案

参考答案:D

解析:采用面向对象的软件开发,通常有面向对象分析、面向对象设计、面向对象实现。 面向对象分析:主要任务是抽取和整理用户需求并建立问题域精确模型。 面向对象设计:主要任务是将分析得到的用户问题模型转换为计算机能够实现的逻辑模型,延续了面向对象分析。 面向对象实现:采用面向对象程序设计语言实现系统。 面向对象测试:根据规范说明来验证系统设计的正确性。

阅读理解
根据短文内容,填写下列表格。
“USA? Britain? Which country is better to study in?” We often hear such discussion. As China opens its door, studying abroad has become a dream for many Chinese students. They want to learn about the world. It’s true that studying abroad can help students develop themselves. Language skills will improve and it may be easier to find a job.
But there are problems that should be considered. Language is the first. Students must spend a lot of time learning another language and getting used to a different culture.
Students must also learn to live without parents’ care and deal with all kinds of things they haven’t had to do before, like looking after themselves. There are reports about Chinese students abroad sinking in an ocean of difficulties and giving up easily. When they have to take care of themselves, it is hard for the students to study well.
Finally, studying abroad brings a heavy burden (负担) to the family. For most Chinese parents, the cost of studying abroad is very high. But is it worth it?
We know that there are many famous people who succeed in great things through their hard work in China. Liu Xiang is a good example. Once an American teacher invited him there but he refused. He kept training hard with his Chinese teacher. He surprised the world when he won a gold medal at Athens Olympics. So when you wonder which country is better to study in, consider whether studying abroad is the right choice.
1. Studying abroad can help students develop themselves
① It can help improve them      1      skills.
② It may be easy for them to find     2      .
2. Problems that should be considered before studying abroad
① Students should spend much time learning another language and getting used to a different      3     .
② Students have to learn how to      4      themselves.
③ The cost of studying abroad is very      5      so that it brings a heavy burden to the family.
3. Is studying abroad the right choice
Different people have different ideas. In fact, whether they succeed or not depends on their      6     .
单项选择题