详细描述输变电设施变动情况的统计规定。

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问题:

详细描述输变电设施变动情况的统计规定。

考点:输变电可靠性考试输变电可靠性考试题库
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在海关事务担保中,进出境活动当事人不能为自己提供担保。

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民族运动会上有一骑射项目如图所示,运动员骑在奔跑的马上,弯弓放箭射击侧向的固定目标.假设运动员骑马奔驰的速度为v1,运动员静止时射出的弓箭速度为v2,跑道离固定目标的最近距离为d.要想命中目标且射出的箭在空中飞行时间最短,则(  )

A.运动员放箭处离目标的距离为

dv2
v1

B.运动员放箭处离目标的距离为

d
v1+v2
2v2

C.箭射到固定目标的最短时间为

d
v2

D.箭射到固定目标的最短时间为

d
v1-v2

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阅读理解

     Writing a long book seemed to be too much for me.So, for a long time, I just wrote short articles.

One day, inspiration (灵感) for an article hit me and, as I started writing, paragraphs began flowing out

fast.It turned out to be too long to be an article.I thought it would not hurt to try selfpublishing a booklet (小册子). The first printing of this 32page black and white booklet sold out within a week.Here is

something that I have learned through my experience.

    1. Start small.

    Don't try to have a 400page work as your first publication (出版物). I suggest you publish a booklet

under 50 pages to launch your career as an author.

    2. Ask for advice.

    If you know some people who have published something, ask them for advice and help.You will gain

useful information from them and save yourself many problems.

   3. ____________________

    When you put your heart into something only to hear "We're not interested", you may get hurt.But you

must remind yourself that this is quite common.Every "yes" you receive comes after at least five "noes",

especially at the beginning.You need to revise (校订) your book many times to reduce the chances of

being turned down.

   4. The more you market, the more you sell.

    You can publish an excellent book.But if no people know about it, you cannot expect many buyers.

Send out an email to friends, family and business partners, telling them your book's publication date.Ask

them to help sell your book.Do not be afraid to try novel ideas.

1. We learn that before selfpublishing his first booklet, the writer most probably________.

A. hoped that he would write some famous long stories

B. had nothing published in newspapers

C. was not happy with what he had written

D. thought it difficult to finish a long book

2. What does the underlined word "launch" in Point 1 here mean?

A. Begin.  

B. Develop.  

C. Lead.  

D. Describe.

3. What's the best title for Point 3?

A. No one will like what you wrote at first.

B. You will get hurt by what you wrote at first.

C. Prepare for a "yes" rather than a "no".

D. Be prepared to deal with "noes"

4. According to the passage, if you want to have more copies of your book sold, you should________.

A. advertise your book in newspapers

B. try to make more people know your book

C. ask your business partners to buy your book

D. write something that people are interested in

5. About selfpublishing a book, the writer would most probably agree that________.

A. one usually makes no money out of selfpublishing a book

B. one should never selfpublish a book longer than 400 pages

C. selfpublishing a book is impossible for most people

D. asking advice from people who have published a book is helpful

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人类大量使用含氟里昂的冰箱和空调等,可导致 [ ]

A.臭氧层被破坏

B.温室效应

C.癌症

D.酸雨

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内燃机车过冬防寒应做好哪几方面的准备工作?

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