问题 单项选择题

喷水织机的喷射泵如采用定速喷射工作方式时,其特点是()。

A、水速、水量和水压不随车速变化,而喷射角随车速的增加而增加。

B、水量和水压不随车速变化,而水速和喷射角随车速的增加而增加。

C、水量和喷射角不随车速变化,而水速和水压随车速的增加而增加。

D、水速和水压不随车速变化,而水量和喷射角随车速的增加而增加。

答案

参考答案:A

阅读理解

阅读理解。

     The New Year is coming and as usual there are great hopes, dreams and resolutions to make.

However, I will stop hoping and dreaming this time and make the resolutions only.

     First of all, I'm going to spend less time talking and more time doing. In the past (过去的) year, my

friends and I spent too much time talking nonsense (胡说八道). There is much work to do in the new

year, so I'm going to give the year to it.

     Secondly, I'm going to spend less time in front of the TV and the computer. These are fun things but

they are also very time-wasting (浪费时间的). It's better to spend the time reading books.

     Lastly, I'm going to join in fewer sports activities. It is better to do well in the lessons than on the

playground. The legs will get old and cannot play soccer for very long, but the mind will be much more

durable (持久的).

     I made lots of resolutions but didn't keep them before. I'm not going to do that again in the new year.

I'll try my best to keep my resolutions.

根据短文内容,简答问题。

1. How many resolutions does the writer make for the new year?

    ______________________________________

2. What does the underlined word "it" refer to?

    ______________________________________

3. What is the writer going to do with the TV and the computer?

    ______________________________________

4. Why is the writer going to join in fewer sports activities?

    ______________________________________

5. What did the writer do with his resolutions before?

    ______________________________________

问答题 简答题