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1. Driving the steep roadto the mountaintop Inca ruins of Machu Picchu is potentially dangerous andhiking there is difficult. Now thePeruvian government is installing a cable car that will make access mucheasier, and hence result in a large increase in tourism. However, since the presence of large numbersof tourists tends to accelerate the deterioration of a site, installation ofthe cable car is certain to result in harm to the ruins. Which of thefollowing, if true, most seriously calls into question the argument? A. The dailynumber of tourists that are expected to take the cable car to Machu Piccu issmaller than the original resident population of Incas. B. Theconstruction of the cable car terminal at Machu Picchu will require the use ofpotentially damaging heavy machinery at the site. C. MachuPicchu is already one of the most popular tourist sites in Peru. D. Naturalweathering will continue to be a more significant cause of the deterioration ofMachu Picchu than tourist traffic. E. The cablecar will replace the tour buses whose large wheels and corrosive exhaust atpresent do significant damage to the site.
答案是E，现在有两种理解方式一个是：即使没有缆车大巴也会造成破坏所以削弱了逻辑；另一个是：缆车将取代会造成更大破坏的bus, 也就是反面论证了缆车会改善当地的破坏现状，可以驳斥
但是第一个解释，不影响建造缆车会带来更多旅客从而造成更大破坏这一个逻辑链吧？另一个解释感觉也怪怪的。。 希望GMAT大神可以给出一些见解！！CR小白真诚求助！！  谢谢！
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发表于 2020-1-10 00:09:31
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，感谢解答！