Many manufacturers were accused of concentrating too heavily on cost reduction, often at the ______of the quality of their produ

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问题 Many manufacturers were accused of concentrating too heavily on cost reduction, often at the ______of the quality of their products.

选项 A、expense
B、expansion
C、exposure
D、expectation

答案A

解析 at the expense of sth.以……为代价。at the expense of the quality of products以产品质量为代价。故选A项。
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