在总账系统中，关于输入记账凭证的叙述，正确的是（）。A、不能录入多借多贷的会计分录

阅读理解。

     Are you looking for something fun and would lyou like to help others in your spare time? Then join us

to be a volunteer! We're a non-profit() organization. We have volunteer jobs of all ages. Anyone, from

twelve-year-old children to people in their seventies can become a volunteer.

     You can help people in many ways. Schools need help with taking care of children while parents are

working. Hospitals need volunteers to look after children while their parents are seeing a doctor. Animal

lovers can help take care of those dogs and cats without homes. There is something for everyone.

     "As a volunteermn, I don't want to get anything. Seeing the children's happy faces, I'm happy, too."

said Carlos Domingo, an old woman of 62. "I often played computer games in my spare time before.

Now I help older people learn how to use computers," said another volunteer at the age of 18.

     If everyone helps out a bit, we'll have a better world to live in. Interested? Call us 1-800-555-5756

or visit our website: www.active.com.

1. When do the volunteeers help others?

A. In their spare time.          

B. At weekends.        

C. On weekdays.              

D. In the evenings.

2. ______ can be a volunteer.

A.Children                    

B. Old women        

C. Anyone aged 12-70          

D. Young people

3. Volunteers want to get ______ when they help others.

A. money        

B. computers        

C. everything      

D. nothing

4. Carlos Domingo does volunteer work with _______.

A. animals      

B. children          

C. computers      

D. nothing

5. We can read such a passage ________.

A. in a newspaper  

B. in a storybook  

C. in a picture book

D. in a textbook

对防锈铝性能说法正确的是（）

A、可焊接

B、不可变形

C、强度比纯铝强

D、塑性差

下面（）不是影响太阳能电池组件输出特性的主要因素。

A．负载阻抗

B．晶体结构

C．湿度

D．日照强度

进程所请求的一次打印输出结束后，将使进程状态从

A．运行态变为就绪态

B．运行态变为等待态

C．就绪态变为运行态

D．等待态变为就绪态

中压及高压容器使用的压力表，精度不应低于（）。

A.2.0级

B.1.5级

C.1.0级

D.2.5级