单选题：According to the passage, in operating airlines it is essent

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题目类型：单选题
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题目内容：

According to the passage, in operating airlines it is essential to__________. A．keep in mind the need of the executives onl
B．satisfy the need of the low fare passengers at the expense of the executive
C．try to attract as many passengers as possible by reducing fare
D．cater to the need of passengers sitting at both ends of the jet

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分类：综合类题型：单选题

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自验预言，是指自我用行为来应验自认为会出现的结果。一个自验预言是由其自身使其成真的。它实际上是一种去确认已存在的看法获得结果的行为。下列各项中，不属于自验预言

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由于社会总供给大于总需求，使经济社会的各种经济资源(包括劳动力资源)无法得到正常与充分的利用而导致的失业被称为总需求不足型失业。根据上述定义判断，下列各项中属

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分类：综合类题型：单选题