问题 单项选择题 共用题干题

在基于构件的软件开发中,(1)描述系统设计蓝图以保证系统提供适当的功能;(2)用来了解系统的性能、吞吐率等非功能性属性。

空白(2)处应选择()

A.逻辑构件模型

B.物理构件模型

C.组件接口模型

D.系统交互模型

答案

参考答案:B

解析:

在基于构件的软件开发中,逻辑构件模型用功能包描述系统的抽象设计,用接口描述每个服务集合,以及功能之间如何交互以满足用户需求,它作为系统的设计蓝图以保证系统提供适当的功能。物理构件模型用技术设施产品、硬件分布和拓扑结构,以及用于绑定的网络和通信协议描述系统的物理设计,这种架构用于了解系统的性能、吞吐率等许多非功能性属性。

多项选择题
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In the fall of 1985,I was a bright­eyed girl heading off to Howard University, aiming at a legal career and dreaming of sitting on a Supreme Court bench somewhere. Twenty­one years later I am later I am still a bright­eyed dreamer and one with quite a different tale to tell.

My grandma, an amazing woman, graduated from college at the age of 65. She was the first in our family to reach that goal. But one year after I started college, she developed cancer. I made the choice to withdraw from college to care for her. It meant that school and my personal dream would have to wait.

Then I got married with another dream: building my family with a combination of adopt and biological children. In 1999, we adopted our first son. To lay eyes on him was fantastic...and very emotional. A year later came our second adopted boy. Then followed son No. 3. In 2003, I gave birth to another boy.

You can imagine how fully occupied I became, raising four boys under the age of 8!Our home was a complete zoo...a joyous zoo. Not surprising, I never did make it back to college full­time. But I never gave up on the dream either. I had only one choice: to find a way. That meant talking as few as one class each semester.

The hardest part was feeling guilty about the time I spent away from the boys. They often wanted me to stay home with them. There certainly were times I wanted to quit.But I knew I should set an example for them to follow through the rest of their lives.

In 2007, I graduated from the University of North Carolina. It took me over 21 years to get my college degree!

I am not special, just single­minded. It always struck me that when you're looking at a big challenge from the outside it looks huge, but when you're in the midst of it, it just seems normal. Everything you want won't arrive in your life on one day. It's a process. Remember;little steps add up to big dreams.

小题1:When the author went to Howard University, her dream was to be ________.

A.a writer

B.a teacher

C.a judge

D.a doctor小题2:Why did the author quit school in her second year of college?

A.She wanted to study by herself.

B.She fell in love and got married.

C.She suffered from a serious illness.

D.She decided to look after her grandma.小题3:What can we learn about the author from Paragraphs 4 and 5?

A.She was busy yet happy with her family life.

B.She ignored her guilty feeling for her sons.

C.She wanted to remain a full­time housewife.

D.She was too confused to make a correct choice.小题4:What does the author mostly want to tell us in the last paragraph?

A.Failure is the mother of success.

B.Little by little,one goes far.

C.Every coin has two sides.

D.Well begun, half done.