阅读理解。
Dear Sir or Madam,
When I first came to Shenzhen, the first thing that surprised me most was the
newspaper. We can see people reading newspapers everywhere, on the bus or on
the street. Newspapers play an important part in China. Reporters who get their
news first will have the market and win.
I myself like reading newspapers very much, both in English and in Chinese,
as readers, we enjoy being in a sea of news every day, But few of us are sure
about the importance of the reporters, who help people when they are in trouble.
We get much closer to the world because of them. They are the pioneers! And I
love brave reporters, who must be the greatest people in the world. For their
readers, sometimes they are in danger; each year a certain number of reporters
die for their jobs all over the world. I feel so sad for that. With China's entry into
the WTO, reporters will play a more important part.
Sincerely yours,
Lee
1. The writer is interested in .
A. reading reports
B. reading newspapers
C. watching people in the street
D. watching reports
2. The writer wants to say that are very important.
A. newspapers
B. readers
C. reporters
D. people
3. By reading newspapers, we the world.
A. nearer
B. know more about
C. close
D. open
4. In the writer's opinion, the reporters are .
A. great
B. pioneers
C. brave
D. all the above
5. Why does the writer feel sad?
A. Few people read newspapers today.
B. Few people know the reporters' im0ortance.
C. Some reporters are in danger now.
D. Some reporters diet for their jobs.
=0.8，起动电流倍数为10，可自起动，系统接地电流为15A，10kV母线短路容量为200MV·A(最小方式)，请列出保护配置，选择电流互感器变比，并计算保护动作电流、短路电流和灵敏系数。