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中国南北分界带西端，最接近我国的（）。查看材料

A.种植业与畜牧业的交错带
B.季风区与非季风区界线
C.地势二、三级阶梯分界线
D.外流河区域与内流河区域分界线

【参考答案】

A
我国主要的地理分界线。南北分界带西端位于种植业与畜牧业的交错带，没有接近季风区与非季风区分界线，地势二、三级......

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Passage Two:Questions 26 to 30 are based on the following passage.Last summer, Transportation Secretary Elizabeth Dole announced a new rule: Unless states representing two-thirds of the country’s population pass compulsory (强制性的) seat-belt-use laws by April 1989, all new vehicles will have to be fitted with air bags or automatic seat belts.The rule wouldn’t have been necessary but for one simple fact. Even though seat belts could prevent nearly half of the deaths in fatal car accidents, 85 percent of the population simply won’t wear them.Why not? Behavioral engineers have found that there are all sorts of reasons—usually unstated. These are some of the most popular. It’s safer to be thrown from a car man trapped. According to E. Scott Geller, that’s a faulty argument. “In fact”, he says, “being thrown from a car is twenty-five times more dangerous than being trapped”.It won’t happen to me; I’m a good driver. But what about the other person who may be a terrible driver? The data show that the average incidence (发生率) for all accidents in one per driver every 10 years.My car will end up underwater or on fire, and I won’t be able to get out. According to the National Highway Traffic Safety Administration (NHTSA), only 0.5 percent of all injury-producing accidents occur under these conditions. “If you’re wearing a belt, you’ve got a better chance of being conscious and not having your legs broken—distinct advantages in getting out of a dangerous situation”.I’m only going a few blocks. Yet 80 percent of accidents happen at speeds or less that 25 miles per hour, 75 percent happen within 25 miles of home.第26题：Before 1989, in the United States ________.A) the use of seat belts was not compulsory for the majority of the populationB) a new law requiring the use of seat belts had just been passedC) people had to choose between the use of seat belts or the use of air bagsD) almost fifty percent of the people involved in car accidents were saved by seat Belts

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