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The recent rise of low-cost airlines in Country Y has

led to great increases in the number of air travelers and flights. However, a “hidden cost” of flying and certain other forms of travel is the significant amount of air pollution, which contributes to global warming. To make people pay these hidden costs—and in the process discourage the explosive growth in flying—the government of Country Y plans to impose fees on all air travel. There is a problem, however, in that many residents of Country Y would then use automobile transportation instead, without paying the hidden costs of the resulting air pollution.

Which of the following additions to the government's plan would be likely to help most in overcoming the problem referred to in the final sentence above?

A. Restricting the number of daily flights permitted in Country Y

B. Using the fees imposed on air travel to educate the public about the effects of air pollution on global warming

C. Setting clear, specific recommendations for the long-term reduction in exhaust emissions by automobile transportation in the country

D. Asking airplane manufacturers to study the possibility of creating airplanes that produce less air pollution

E. Imposing substantial fees on all forms of motorized transportation, in proportion to the amount of pollution caused by each form

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答案：

Y國低成本?

?空公司增加，導致旅行者和航班增加。然而，飛機和特定的其他旅行方式的“隱含成本”是很大的空氣污染，會導致全球變暖。為了讓人們付這些隱含成本，防止飛行爆發(fā)式增長，Y計劃對所有飛行征收附加費。然而問題是很多人都會開車出行，避免為隱含成本付費。計劃題，目標讓人們付飛機的隱含成本題目增強目標 A 限制每天航班數(shù)量；與目標無關，排 B 用飛行增費來教育公眾污染導致的全球變暖問題；與目標無關，排 C 對尾氣減排制定清晰，特定的標準；制定標準，并不影響人們開車出行，排 D 讓飛行制造企業(yè)研究少排放的飛機；少排放的飛機與增費無關，排 E 根據(jù)每種形式污染量的比例，對所有形式的汽車交通增收大量的費用；對汽車增大量的費，阻止開車出行，搭橋增強，正確