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Each day every person in the United States throws away more than five pounds of garbage(垃圾). There is more garbage now than ever
Each day every person in the United States throws away more than five pounds of garbage(垃圾). There is more garbage now than ever
admin
2011-04-26
24
问题
Each day every person in the United States throws away more than five pounds of garbage(垃圾). There is more garbage now than ever before and most of it is made up of the packages and cans in which we put our food. The traditional way of getting rid of solid wastes is quickly becoming inadequate. Many cities are experimenting with newer ways of handling their growing piles of garbage.
One of these new ways is "recycling"(回收使用). Through recycling usable materials are taken out of garbage and made into something else. These usable parts of garbage are put through the cycle of going from a raw material to a finished product again.
In some cities a machine called Hydrapulper is being used to help recycle garbage. A Hydrapulper is like a huge mixing machine. The garbage is dropped onto a conveyor belt (传送带) that feeds the machine. At the same time, water is pumped into the Hydrapulper. With a mixing action, the Hydrapulper throws out the heavy metal objects that can later be sold as waste metal. The rest of the garbage—paper, food, plastic, rubber, glass, wood, leaves, and other items—falls apart. The waste is then mixed with water and carried to another piece of equipment where glass, sand and small pieces of metal are thrown out.
With the Hydrapulper, up to 95 percent of the original garbage is made again useful. The rest turns into furnace ash(炉灰).
How does the Hydrapulper work?
选项
A、It throws away glass and sand from garbage.
B、It collects heavy metal objects for selling.
C、It separates garbage into useful and useless things.
D、It pumps water into garbage and mixes it.
答案
C
解析
本题为细节辨认题。由第三段可知垃圾被放到传送带上送入机器,该机器将废铁、玻璃等还能回收利用的垃圾和不能回收的诸如食物、树叶等分离开。A项和B项都只能提供部分信息,D项只描述了该机器的一部分工作程序。
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本试题收录于:
英语题库成考专升本分类
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英语
成考专升本
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