6. Since the deregulation of airlines, delays at the nation's increasingly busy airports have increased by 25 percent. To combat this problem, more of the takeoff and landing slots at the busiest airports must be allocated to commercial airlines. Which of the following, if true, casts the most doubt on the effectiveness of the solution proposed above? (A) The major causes of delays at the nation's busiest airports are bad weather and overtaxed air traffic control equipment. (B) Since airline deregulation began, the number of airplanes in operation has increased by 25 percent. (C) Over 60 percent of the takeoff and landing slots at the nation's busiest airports are reserved for commercial airlines. (D) After a small midwestern airport doubled its allocation of takeoff and landing slots, the number of delays that were reported decreased by 50 percent. (E) Since deregulation the average length of delay at the nation's busiest airports has doubled.
答案是a. 但是觉得c也可以啊。那么c错在哪里？ Questions 12-13 are based on the following. According to the Tristate Transportation Authority, making certain improvements to the main commuter rail line would increase ridership dramatically. The authority plans to finance these improvements over the course of five years by raising automobile tolls on the two highway bridges along the route the rail line serves. Although the proposed improvements are indeed needed, the authority's plan for securing the necessary funds should be rejected because it would unfairly force drivers to absorb the entire cost of something from which they receive no benefit.
12. Which of the following, if true, would cast the most doubt on the effectiveness of the authority's plan to finance the proposed improvements by increasing bridge tolls? (A) Before the authority increases tolls on any of the area bridges, it is required by law to hold public hearings at which objections to the proposed increase can be raised. (B) Whenever bridge tolls are increased, the authority must pay a private contractor to adjust the automated toll-collecting machines. (C) Between the time a proposed toll increase is announced and the time the increase is actually put into effect, many commuters buy more tokens than usual to postpone the effects of the increase. (D) When tolls were last increased on the two bridges in question, almost 20 percent of the regular commuter traffic switched to a slightly longer alternative route that has since been improved. (E) The chairman of the authority is a member of the Tristate Automobile Club that has registered strong opposition to the proposed toll increase. 答案是d. 但是觉得b, c 也是可以的。错在哪里呢？ 13. Which of the following, if true, would provide the authority with the strongest counter to the objection that its plan is unfair? (A) Even with the proposed toll increase, the average bridge toll in the tristate region would remain less than the tolls charged in neighboring states. (B) Any attempt to finance the improvements by raising rail fares would result in a decrease in ridership and so would be self-defeating. (C) Automobile commuters benefit from well-maintained bridges, and in the tristate region bridge maintenance is funded out of general income tax revenues to which both automobile and rail commuters contribute. (D) The roads along the route served by the rail line are highly congested and drivers benefit when commuters are diverted from congested roadways to mass transit. (E) The only alternative way of funding the proposed improvements now being considered is through a regional income tax surcharge, which would affect automobile commuters and rail commuters alike.
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发表于 2003-10-29 09:59:00
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