作者：英吉
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?
A.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.
B.The construction of the cable car terminal at Machu Picchu will require the use of potentially damaging heavy machinery at the site.
C.Machu Picchu is already one of the most popular tourist sites in Peru.
D.Natural weathering will continue to be a more significant cause of the deterioration of Machu Picchu than tourist traffic.
E.The cable car will replace the tour buses whose large wheels and corrosive exhaust at present do significant damage to the site.
题目分析：A说旅客数量比原有居民要少，没说，干掉。B说建造cable car将会对这个地方造成损害，这个支持原文了，不能回答问题，杀。C说这个地是著名旅游景点之一，扯淡，没说，杀。D说天气对这个地方的损害更大，我原文反复谈建造缆车是否造成损害，关天气什么事，干掉。E说缆车将会是一些以前造成损害的东西（这个东西可以是bus当然也可以是别的）消失，那就使得缆车造成损害的幅度在减少，可以驳斥，留着。
