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题库 / Prep2007E1-SC-82
Each year companies in the United States could save as much as $58 billion annually by preventing illness among employees and gain as much as $200 billion through improving performance of workers if they simply provided offices with cleaner air.
annually by preventing illness among employees and gain as much as $200 billion through improving performance of workers if they simply provided
annually if they prevented employee illness and gain as much as $200 billion through worker performance improved by simply providing
annually in employee illness prevention and gain as much as $200 billion through worker performance improved by simply providing
in employee illness prevention and gain as much as $200 billion through improving performance of workers if they simply provided
by preventing illness among employees and gain as much as $200 billion through improved worker performance if they simply provided
我觉得这道题分析起来，主要要看句意。逻辑为先。D中，save money in prevention意思是在控制疾病方面省钱，但save money by preventing 是通过控制疾病省钱，钱不一定省在哪方面，有可能是在疾病带来的production下降造成的损失方面。我认为这点重要过什么动词》形容词》名词 这个思路。
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