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  3. In 1998 the United States Department of Transportation received nearly 10,00

In 1998 the United States Department of Transportation received nearly 10,00

游客2025-02-19  16
问题     In 1998 the United States Department of Transportation received nearly 10,000 consumer complaints about airlines; in 1999 it received over 20,000. Moreover, the number of complaints per 100,000 passengers also more than doubled. In both years the vast majority of complaints concerned flight delays, cancellations, mishandled baggage, and customer service. Clearly, therefore, despite the United States airline industry’s serious efforts to improve performance in these areas, passenger dissatisfaction with airline service increased significantly in 1999.
    Which of the following, if true, most seriously weakens the argument?
选项 A、Although the percentage of flights that arrived on time dropped slightly overall, from 77 percent in 1998 to 76 percent in 1999, some United States airlines’ 1999 on-time rate was actually better than their 1998 on-time rate.
B、The number of passengers flying on United States airlines was significantly higher in 1999 than in 1998.
C、Fewer bags per 1,000 passengers flying on United States airlines were lost or delayed in 1999 than in 1998.
D、The appearance in 1999 of many new Internet sites that relay complaints directly to the Department of Transportation has made filing a complaint about airlines much easier for consumers than ever before.
E、Although the number of consumer complaints increased for every major United States airline in 1999, for some airlines the extent of the increase was substantial, whereas for others it was extremely small.
答案 D
解析 D选项说明，投诉量上升了，反映的不是顾客满意度下降，而是投诉比以往更容易了，属于“直接削弱结论”。正确。A项本文讨论的是投诉数量和人均投诉量能否反映顾客满意度，与哪些航空公司改善了准点率没有关系，故不选。B项乘客数量增多，再加上原文提到的人均投诉量增加，那么就说明不满的顾客在1999年更多了，这是在加强原文结论：1999年乘客的不满显著上升，故不选。C项本文讨论的是投诉数量和人均投诉量能否反映出顾客满意度，与行李丢失率是否下降没有关系，故不选。E项本质上在重复“投诉总量上升”这一点，属于重复原文，故不选。
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