单选题Many countries face a somewhat more serious economic problems in the form of an unfavorable trade balance (贸易逆差) with other nations. Such an imbalance exists when the total value of a country's imports exceeds that of its exports. For example, if a country buys $ 250 billion of products from other countries, yet sells only $ 100 billion of its own products overseas, its trade deficit is $ 150 billion. Many underdeveloped nations find themselves in this position because they lack natural resources or the industrial capacity to use these resources, and thus have to import raw materials or manufactured goods. One effect of a trade deficit is the flow of currency (货币) out of a country. In the case of an underdeveloped nation, this can cause many financial difficulties, including failure to meet debt payments and obstacles to creation of an industrial base. Even in the case of a fully developed nation such as the United States, a large trade deficit is reason for alarm. American products, made by well-paid workers in US industries, cost more to produce than those made in places like Asia, where labor and material costs are much lower. Money spent on foreign products is money not spent on items produced by domestic industries.

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单选题Lately you've been hearing a lot of auto companies talking about safety. And at GM. we're proud to say that safety has been a part of our heritage for years. Because to US, safety is more than just the latest trend: it's the key ingredient in the trust we've built with our customers over the years.

单选题Movies are the most popular form of entertainment for millions of Americans. They go to the movies to escape their normal everyday existence and to experience a life more exciting than their own. They may choose to see a particular film because they like the actors or because they have heard the film has a good story. But the main reason why people go to the movies is to escape. Sitting in a dark theater, watching the images on the screen, they enter another world that is real to them. They become involved in the lives of the characters in the movie, and for two hours, they forget all about their own problems. They are in a dream world where things often appear to be more romantic(浪漫的)and beautiful than in real life. The biggest "dream factories" are in Hollywood, the capital of the film industry. Each year, Hollywood studios make hundreds of movies that are shown all over the world. American movies are popular because they tell stories and they are well-made. They provide the public with heroes who do things the average person would like to do but often can"t. People have to cope with many problems and much trouble in real life, so they feel encouraged when they see the "good guys" win in the movies.

单选题The boys______ living with Robin Hood in Sherwood forest better than being President of the United States.

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单选题Students in Class 3 ______ great progress in the past few months. A. will make B. made C. have made D. makes

单选题Everyone has periods in their lives ______ everything seems so hard. A. when B. where C. which D. that

单选题The city government recognizes that citizens have some new needs. To better meet your needs, we have made several changes in community facilities in 2009. Three stations for the suburbs have been added to the western train service. Broadband (宽带) cable is now available to all pans of the city. 5000 new books were bought for the City Library. Some new facilities at the city hospitals have been installed. Next year, we will try our best to make your life even better.

单选题After ______ for the job, you'll be required to wait for three days. A) interviewing C) interviewed B) having interviewed D) being interviewed

单选题Fashion designers tend to take advantage of the fact that women will put up with any amount of discomfort, as long as they look right.

单选题They were so behaved in the debate that we find it difficult not to admire them.

单选题Our students are free to study ______ interests them. A. that B. which C. whatever D. anything

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单选题______ did they realize that they had made an important discovery in science.

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单选题There ______ nothing to do, Lily got to her feet and hurried off. A. is B. was C. being D. having

单选题According to the first paragraph, which of the following is TRUE? A) Production is a kind of knowledge. C) Production is guided by the market. B) Production controls the market. D) Production can be stopped suddenly.