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GRE阅读题目练习:冰箱毁灭了臭氧层

2019-09-23 15:46:00来源:网络

  为了帮助大家高效备考GRE,新东方在线GRE频道为大家带来GRE阅读题目练习:冰箱毁灭了臭氧层,希望对大家GRE备考有所帮助。更多精彩尽请关注新东方在线GRE频道!

  When released into the atmosphere, the refrigerant Freon damages the Earth's ozone layer. A new kind of refrigerant does not have this effect. The manufacturer claims that replacing Freon with the new refrigerant in both new and existing refrigerators will prevent any further Freon damage to the ozone layer apart from that being done by the Freon already in the atmosphere.

  Which of the following must be true if the manufacturer's prediction is to prove accurate?

  A. Freon can be replaced with the new refrigerant without releasing any Freon into the atmosphere.

  B. The damage already done to the ozone layer is not of environmentally significant proportions.

  C. The atmosphere can reverse the damage to the ozone layer caused by the past use of Freon.

  D. The new refrigerant can counteract the damaging effects of Freon on the Earth's atmosphere.

  E. The new refrigerant causes no environmental damage of any kind when it is released into the atmosphere.

  正确答案

  A

  以上就是关于“GRE阅读题目练习:冰箱毁灭了臭氧层”的内容,更多精彩内容,请关注GRE频道!


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