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：收到一大堆邮件，说逻辑某些讲解不清楚，我今天换一种方式讲，这道题类似于这样一个场景，就是原文对安装缆车有一些担心，我作为主张安装缆车的人来消除这些顾虑A说计划乘坐缆车的人的数量少于原来的居民，说的是乘坐缆车的人数多少，顾虑根本没打消，杀。B说建造缆车需要重型机器，顾虑也没打消，杀。C说这个城市已经是著名旅游景点了，扯远了，杀。D说天气将继续是导致这个地方破坏的主因，说天气继续是主因，那就是原来也这样，这就和我安不安装缆车都会这样，不能消除顾虑，杀。E说如果我建了缆车我就可以用缆车来代替那些造成更多污染的bus。顾虑消除了，选这个！
