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GRE阅读逻辑题训练(48)

2017-03-31 16:10:00来源:新东方在线整理

  为了帮助大家练习GRE阅读逻辑题,新东方在线GRE频道为大家带来GRE阅读逻辑题训练(48)一文,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!

  Scientists now believe that artificial-hip implants, previously thought to be safe, may actually increase the risk of cancer in recipients after about 45 years of use. Though these implants do improve the quality of recipients’ lives, the increased risk of cancer is an unacceptable price to pay for these improvements. Therefore, they should be banned.

  Which of the following, if true, is the strongest counterargument to the argument above?

  A:Artificial-hip implant survey can cause severe complications, such as infection, chronic fever, and bone degeneration, and these complications can themselves be crippling or even fatal.

  B:Almost all artificial-hip implant recipients receive their implants at an age when they are unlikely to live more than an additional 30 years.

  C:Although artificial-hip implants increase the risk of the cancer after about 45 years of use, a few of the cancers they induce are not fatal.

  D:Since artificial-hip implants are not very common, banning them would cause little hardship.

  E:Although the benefits of artificial-hip implant surgery have remained substantially the same over the past decade, the price of the surgery has risen considerably.

  最佳解析:

  本题推理为:“因为人工髋关节手术的接受者在四十五年后有患癌症的危险,所以这种手术应当被禁止。”反对对象为原因。(B)指出接受这种手术的人在接受手术时的年龄使他们不可能再活30年,反对了上面四十五年后会得癌症的原因。所以(B)is correct。(A)是对上面的推理做了一个最好的支持,说明该手术确实应当被禁止。(C)(D)(E)均起不到反对作用。

  答案:B

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