Many manufacturers were accused of concentrating too heavily on cost reduction, _____________________(往往是以产品的质量为代价).

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问题 Many manufacturers were accused of concentrating too heavily on cost reduction, _____________________(往往是以产品的质量为代价).

选项

答案often at the expense of the quality of their products

解析 本题考查介词词组at the expense of“以……为代价”;也可用其同义短语at the cost of表达此义。常考的由at构成的介词短语还有:at intervals“每隔一段(时间或距离)”;at length“终于,详细地”;at the rate of“以……比率”;at sb’s disposal“任某人处理.供某人使用”。
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