问题 单项选择题

产品结构设计中,( )是产品的固有性质,它属于产品固有可靠性的指标之一。

A.维修度
B.有效度
C.可达度
D.损坏度

答案

参考答案:A

解析:维修度是指维修产品发生故障后,在规定条件(备件储备、维修工具、维修方法及维修技术水平等)和规定时间内能修复的概率,它是维修时间r的函数,用M(τ)表示,称为维修度函数。

阅读理解

The following diaries were written by an Australian boy named Tony. He was on holiday with his family in South Asia.

27 December, 2007

This morning I read an e-mail about a boy in hospital looking for his father and I finally thought of a way to help. I took my camera to the hospital and took photos of the boy. Now I’m going to set up a website on my dad’s computer, upload the photos and add his name and information of the hospital. Hopefully it will help!

2 January, 2008

At the end of the trip, I learned that the boy found his father! His Swedish uncle saw the e-mail on my webpage and arranged the meeting. Is it my website that has made such a success? But at least I’ve done something.

We’re returning home tomorrow but I will remember the experience and tell my friends: No matter what we are, we can think of a way to help others.

小题1:. Tony thought of the way to ______.

A.forget the experience

B.take photos of the travelers

C.set up a website for the hospital

D.help the boy find his father小题2: ______ saw the e-mail and photos on the webpage and arranged the meeting.

A.The boy’s uncle

B.Tony

C.Tony’s father

D.The doctor小题3: Tony was more likely to be ______ in South Asia.

A.living

B.studying

C.shopping

D.traveling小题4: It can be learned from the diaries that ______.

A.people are willing to set up websites

B.Tony’s father worked in the hospital there

C.people can do something to help each other

D.Tony went there to look for his family members

多项选择题