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题库 / Prep2007E1-CR-20
For years the beautiful Renaissance buildings in Palitito have been damaged by exhaust from the many tour buses that come to the city. There has been little parking space, so most buses have idled at the curb during each stop on their tour, and idling produces as much exhaust as driving. The city has now provided parking that accommodates a third of the tour buses, so damage to Palitito's buildings from the buses' exhaust will diminish significantly.
Which of the following, if true, most strongly supports the argument?
The exhaust from Palitito's few automobiles is not a significant threat to Palitito's buildings.
Palitito's Renaissance buildings are not threatened by pollution other than engine exhaust.
Tour buses typically spend less than one-quarter of the time they are in Palitito transporting passengers from one site to another.
More tourists come to Palitito by tour bus than by any other single means of transportation.
Some of the tour buses that are unable to find parking drive around Palitito while their passengers are visiting a site.
推理模式：方案推理
目标：减少大巴尾气对古建筑的损害
方案：提供更大的停车场降低空挡等客人的时间
评估方向：CQ1 方案可行性问题， C选项提出了 4分之1的时间是载客，那么4分之3是在等客人，说明等客人排尾气是损害建筑的原因，也就暗示方案是可行的，将大巴车停在停车场就可以解决等客人排尾气，从而保护建筑物。
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