25T型（BSP）空调座车的客室电加热器额定功率为（） A.300W B.400W

阅读理解。

Dear Harry Potter,

     Hi! I'm Kevin from India. I really feel lucky to write you a letter.

    Though I live far away from your world, I think we are a little alike, You are a great wizard (奇才). You

have done lots of magical things to be amazed at. Although I don't do magic. I do believe in it. Well, I'm also

a wizard at school. And I can often get As, but I am not a bookworm. I like to play jokes in class, which

sometimes make my teachers angry. I also have many friends. They often get me into and out of trouble.

No matter what has happened, we still get close together.

     Oh, I almost forget to tell you that our school is almost like yours, Hogwarts. It's a special one for

excellent students. We have modern classes and technology lessons. But when much is given, much is

expected, so I often stay up late just to finish my homework. It really makes me tired and bored.

     Luckily, I can read your stories in my free time. I feel like I know you. You have a mind of your own.

You are young, but you know how to take responsibility(责任) for your decisions. Also you think with a

clear head even in danger. What a great boy you are! How I wish I could meet you soon!

     May you have a nice time. 

                                                                                                                                Yours,

                                                                                                                                Kevin

1. Kevin and Harry are a little alike because _______.

A. they almost have the same experience

B. their worlds are full of magic

C. their schools are close to each other

D. they both like the same subjects

2. In the passage, "a bookworm" means a person _______.

A. who likes keeping worms

B. who is loved by teachers at school

C. who is nervous of reading books

D. who enjoys nothing but reading

3. From the passage we know that Kevin _______.

A. is a slow boy in class

B. is fed up with much homework

C. doesn't believe in magic

D. likes to keep quiet in class

4. Kevin writes to Harry to tell him many things EXCEPT _______.

A. his friends

B. his school life

C. his trouble

D. his family

5. Which of the following is NOT the reason (原因) that Kevin likes Harry?

A. Harry can do magical things.

B. Harry keeps a clear head in danger.

C. Harry likes reading stories.

D. Harry takes responsibility for what he has decided.

上中切牙间生理性间隙原因是（）

A.暂时性错

B.异常唇系带

C.多生牙

D.不良习惯

E.遗传

电缆如直埋敷设，尤其要注意土壤条件，一般建筑物下电缆的埋设深度不小于（）米

A、0.1

B、0.3

C、0.5

D、0.7

拒绝监督抽查的企业的产品，按下列哪种方式论处？（）

A.合格

B.不合格

C.待定

D.查封

出版物市场细分杠杆不包括（ ）。

A．消费者收入

B．消费者职业

C．发行商的地理位置

D．出版社规模