变压器根据绕组和铁芯的安装位置不同，可分为芯式和壳式两种。
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What's the main topic of the passage?
A. The power of the press.
B. How to write headlines.
C. What we mean by“news”.
D. The work of a journalist.
What do many people remember when they think back to 11 Sept. 2001?
A. Where they were at the time.
B. The headlines they read in the papers.
C. They couldn’t believe it was true.D.
D. What someone said to them afterwards.
What does the writer remember about president Kenney?
A. Meeting him when he was a child.
B. Learning about him at school.
C. Hearing the news about his death.
D. Seeing the assassination on TV.
Why did a mouse hold up a plane from Vietnam to Japan?
A. It ate some electrical equipment.
B. It frightened a number of passengers.
C. It didn’t have any documents.
D. Technicians thought it could cause a problem.
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