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.
Plan:新增停车场,足够容纳1/3的大巴 Goal:减少因为找不到停车场只能idle的大巴所产生的尾气
choice c, 大巴运输乘客的时间只有1/4.言下之意大巴花了3/4的时间在漫无目的idle。correct
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