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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
是通过preventing illness减低成本
不是公司主动提高worker performance导致赚钱，而是（公司净化空气导致的）被提高的 worker performance导致了赚钱。
through improved worker performance和through improving performance of workers的核心词有明显的不同，前者强调的是“worker performance员工绩效”，后者则强调improving这个动作
故E正确
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