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A．It will increase the amount of unpleasant odors from vehicles.B．It will eventually d

A. It will increase the amount of unpleasant odors from vehicles.
B. It will eventually destroy the ozone layer.
C. It will reduce the amount of pollutants in the air.
D. It will reduce the cost of running large vehicles.

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The acid rain problem has improved a lot.

A. Y
B. N
C. NG

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听力原文： In recent years, there have been an unusually large number of divorces in the United States. In the past, when two people manned each other, they intended to stay together for life, while today many people marry believing that they can always get a divorce if the marriage does not work out.
In the past, the large majority of Americans frowned at the idea of divorce. Furthermore, many people believed that getting a divorce was a luxury that only the rich could afford. Indeed, getting a divorce was very expensive. However, since so many people have begun to take a more casual view of marriage, it is interesting to note that the costs of getting a divorce are lower. In fact, wherever you go in the United States today, it is no unusual to see newspaper ads that pro vide information on how and where to get a cheap divorce.
Hollywood has always been known as the divorce capital of the world. The divorce rate among the movie stars is so high that it is difficult to know who is married to whom. Today, many movie stars change husbands and wives as though they were changing clothes. Until marriage again becomes a serious and important part of people's lives, we will probably continue to see a high rate of divorce.
(23)

A. They thought it quite acceptable.
B. They believed it to be a luxury.
C. They took it to be a trend.
D. They considered it avoidable.

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听力原文：W: Jimmy said that he was going to marry a rich French businesswoman.
M: Don't be so sure. He once told me that he had bought a big house. Yet he's still sharing an apartment with Mark.
Q: What does the man imply？
(18)

A. Jimmy is not serious in making decisions.
B. Jimmy is rich enough to buy a big house.
C. Jimmy's words are often not reliable.
D. Jimmy will regret marrying a Frenchman.

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A．He wonders if he'll have enough time to do the job.B．He fears that the job may be to

A. He wonders if he'll have enough time to do the job.
B. He fears that the job may be too boring.
C. He thinks Prof. Johnson has someone else in mind.
D. He is afraid he won't know enough to do the job well.

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A．It will increase the amount of unpleasant odors from vehicles.B．It will eventually d