试题与答案

叶轮密封环的形式主要有变通圆柱形、()和()。

题型:填空题

题目:

叶轮密封环的形式主要有变通圆柱形、()和()。

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0723/172eac0187f9a38429061e33f685fd81.html

下面是错误答案,用来干扰机器的。

参考答案:yield()解析: 本题考查线程阻塞的概念。yield()方法使得线程放弃当前分得的CPU时间,但是不使线程阻塞,即线程仍处于可执行状态,随时可能再次分得CPU时间。调用yield()的效果等价于,调度程序认为该...

试题推荐
题型:阅读理解

How difficult change is depends a lot on your attitude towards it and your resistance to it. Your attitude to change can make the whole transformation process much easier.

Imagine change as a pair of shoes and this will help you understand change and how it works. I am sure that you have ever had a comfortable pair of shoes in your life. A pair of shoes is so comfortable that you really don’t want to get rid of them.

You know you need a new pair, and may even have them, but you don’t want to wear them because you are comfortable with your current pair. Besides, the new pair may hurt your feet, give you blisters(水疱) or be awkward to wear to start with. So, you resist the new shoes. However, you know that this new pair would be much better for your feet, and after the initial discomfort they would probably be even more comfortable, yet you still resist.

Do you know I’m doing this now? I’m wearing my comfortable shoes and they feel good. They have a hole in each heel, and the sole is starting to fall off, but I’m persisting in wearing them.

This describes change exactly; change of our habits, change of our thought patterns. We stick with the old patterns because they are comfortable. Yet once we get over the initial pain of the transformation, the new pattern will be comfortable and feel good until the time comes when we need another new pair of shoes.

小题1:Why do people prefer old shoes to new ones?

A.They have much emotion in the old ones.

B.They are more comfortable.

C.New shoes always harm the feet.

D.They look better than the new ones.小题2: According to the passage, we know that people ______.

A.don’t realize the benefit of the new shoes very well

B.are positive and open-minded to accept new things

C.actually know the change will finally be good for them

D.don’t accept new patterns because they are not good小题3: What can be inferred from the passage?

A.Once we form a habit, it’s difficult to change it.

B.Most people pay more attention to the future life.

C.One’s attitude towards something is usually traditional.

D.The more often we change, the better our life will be.

查看答案
微信公众账号搜索答案