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题库 / GMATLA-CR-24
Driving the steep road to the mountaintop Inca ruins of Machu Picchu is potentially dangerous and hiking there is difficult. Now the Peruvian government is installing a cable car that will make access much easier, and hence result in a large increase in tourism. However, since the presence of large numbers of tourists tends to accelerate the deterioration of a site, installation of the cable car is certain to result in harm to the ruins.
Which of the following, if true, most seriously calls into question the argument?
The daily number of tourists that are expected to take the cable car to Machu Piccu is smaller than the original resident population of Incas.
The construction of the cable car terminal at Machu Picchu will require the use of potentially damaging heavy machinery at the site.
Machu Picchu is already one of the most popular tourist sites in Peru.
Natural weathering will continue to be a more significant cause of the deterioration of Machu Picchu than tourist traffic.
The cable car will replace the tour buses whose large wheels and corrosive exhaust at present do significant damage to the site.
E说cable car减轻了损害，代替了损害更严重的tour buses，但是并不能否认cable car是有损害的这件事啊。
结论也并没有说cable car带来更多的伤害，如果这样说的话那E削弱是肯定的，只要否认那个程度就行。所以还是不理解E为啥对
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