试题与答案

在带电的电压互感器二次回路上工作时,应采取哪些安全措施?

题型:问答题 简答题

题目:

在带电的电压互感器二次回路上工作时,应采取哪些安全措施?

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C

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题型:选择题

五种短周期元素X、Y、Z、M、N的原子序数依次增大,X、Y、Z、M最组成蛋白质的基础元素,M原子的最外层电子数是电子层数的3倍,N2M2可用于潜水艇中作为氧气的来源,下列说法错误的是(  )

A.与Y同主族的短周期元素所形成的氧化物可用于制作光导纤维

B.由X、Z、M形成的化合物一定是共价化合物

C.X和M形成的化合物分子中可能含有非极性共价键

D.等物质的量的N2YM3粉末和NXYM3粉末分别与等浓度的盐酸反应,后者反应速率要快

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题型:阅读理解

It’s not easy growing up. Growing up can be a real “pain” for some of us. We are always doing things that someone else makes us do and aren’t allowed to do all the things we like. Sometimes we feel sad, sometimes we are fearful, and sometimes we just don’t understand why we can’t stay young forever. But we should take a look back on all the hardships (苦难) in life with a positive attitude and learn from them. We should realize that all of our growing pains actually turn into growing gains!

Throughout our lives we are going to face many challenges and pains, but we should never let these obstacles keep us from following our dreams. We must overcome every obstacle one small step at a time.

As a young girl, my parents forced me to do so many things that I didn’t like. They made me learn to play the violin and then the piano. At that time I hated music and I also hated them. But looking back now, I am so glad that my parents encouraged me to take music lessons. Music has enriched (丰富) my life in so many ways. I now realize that my parents and teachers wanted me to have a better life than they did themselves.

We are all going to experience growing pains, but they are just part of our life. Think about how we would feel if we had no challenges and lived a life like that. Life would be really boring and meaningless. The future is ours! A little hard work and sweat never hurt anyone! If we realize that these pains are just small bumps (碰撞) on our road to success, we will realize that our growing pains are actually growing gains!

1. What would be the best title for this passage?

A. No pains, no gains

B. Growing pains and gains

C. Growing up is a pain         

D. Growing up is easy

2. The underlined word “obstacles” (in Paragraph 2) refers to things that _____.

A. make it easy for you to do sth        

B. make it difficult for you to do sth

C. make you happy                            

D. make you full of energy

3. What does the author now think about what her parents did for her in the past?

A. She is angry with them.                     

B. She is dissatisfied with them.

C. She is thankful to them.                  

D. She couldn’t forgive them.

4. Which of the following is NOT true according to the passage?

A. Growing pains are part of our life.

B. Our growing pains will finally turn into growing gains.

C. We should stop when facing many challenges.

D. Life without challenges is boring and meaningless.

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