2. 外语
  3. International airlines have rediscovered the business travelers, the man or woman who regularly jets from country to country as

International airlines have rediscovered the business travelers, the man or woman who regularly jets from country to country as

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问题     International airlines have rediscovered the business travelers, the man or woman who regularly jets from country to country as part of the job. This does not【C1】______mean that airlines ever abandoned their business travelers.【C2】______. companies like Lufthansa and Swissair would rightly argue that they have always【C3】______best for the executive-class passengers.【C4】______many lines could be accused of concentrating too heavily in the recent past【C5】______attracting passengers by volume, often at the【C6】______of regular travelers. Too often, they have seemed geared for quantity【C7】______than quality.
    Operating a major airline in the 1980s is essentially a(n) 【C8】______of finding the right mix of passengers. The airlines need to fill up the back end of their wide-bodied jets with passengers paying a【C9】______fare, without forgetting that the front end should be filled with people who pay【C10】______more for their tickets.
    It is no【C11】______that the two major airline bankruptcies in 1982 were among the companies【C12】______in cheap flights. But low fares require consistently full aircraft to make flights economically viable(可行的), and in the recent recession the【C13】______of traffic has not grown. Equally the large number of airlines jostling(争夺)for the【C14】______passengers has created a huge excess of capacity. The net result of excess capacity and cutthroat【C15】______driving down fares has been to push some airlines into【C16】______and leave many others hovering on the【C17】______.
    Against this grim background,【C18】______is no surprise that airlines are【C19】______increasingly to the business travelers to improve their rates of return. They have【C20】______much time and effort to establish exactly what the executive demands for sitting apart from the tourists.
【C5】
选项 A、at
B、by
C、in
D、on
答案D
解析 惯用衔接题。concentrate on意为“专注于…”，故答案为[D]on。此处是说，但是许多航空公司近些年过于注重通过数量来吸引乘客，他们可能因此受到指责。
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