15。 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. 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.
这题我选的D,但是答案是E
D不是说了气候才是毁坏经典的重要因素么,所以不管人会不会多,景点都会被毁坏,cable car的安装也就不会导致景点的损害了。请牛牛解释~~~~
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