问题 问答题 计算题

某一直流发电机数据:极数2p=6,总导体数N=780,并联支路数2a=6,运行角速度是ω=40πrad/s,每极磁通=0.0392Wb,求发电机的感应电势。

答案

参考答案:

发电机的感应电势为611.52V。

阅读理解

阅读理解。

       Miss Hong: Attention, please. As you know, Mr. Smith, our headmaster won five million yuan in the

  lottery yesterday. So today I will give you an interesting topic. I'm sure you will like it. very much. That

   is What would you do if you had much money?"

       All the students:  Wow!

       Student A: If I had a lot of money, I would buy my parents a new house with a big garden, because

  they are living in an old house.

      Student B: If I had a lot of money, I would give it to charities like Bill Gates.

      Student C: If I had a lot of money, the first thing I would do is... to buy a computer for myself.

      Miss Hong: Why?

      Student C: Because I like playing computer games and my parents don't allow me to play.

      Student D:I'm going to be a doctor as my father when I grow up. So I will give some of the money to

  medical research.

      Student E: There are lots of poor children who can't go to school because they have little money.

  They are in great need of money. So if I had a lot of money, I would give some to the Hope Project.

       Miss Hong: That's great !  Please go on !

       Student F: I love money. Money makes the mare go.  I would like to buy everything I like.

       Student D: I disagree. Gold will not buy everything. You can buy a house, but you can't buy a home.

   You can buy a bed, but you can't buy a good sleep.

      Miss Hong: Well done, my children. No matter what you would do if you had a lot of money, just

  remember two sentences: No pains, no gains. Wisdom in the mind is better than mone in the hand.

1. The sentence underlined means "_____" in Chinese.

A. 金钱就是一切

B. 金钱不是万能的

C. 有钱能使鬼推磨

2. _____ would give some money to the Hope Project if he had a lot of money.

A. Student A          

B. Student C

C. Student E          

D. Student D

3. Student C would buy a computer first if he had a lot of money because  _____.

A. he likes playing computer games

B. he wants to make his parents angry

C. his parents don't allow him to play

D. A&C 

4. How many students are mentioned in the conversation?

A. Six.    

B. Five.    

C. Four.    

D. Three.

5. Miss Hong thinks that _____ thought is great.

A. Student E's    

B. Student F's

C. Student A's    

D. Student B's

单项选择题