82. (28967-!-item-!-188;#058&003792) 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. (A) annually by preventing illness among employees and gain as much as $200 billion through improving performance of workers if they simply provided (B) annually if they prevented employee illness and gain as much as $200 billion through worker performance improved by simply providing (C) annually in employee illness prevention and gain as much as $200 billion through worker performance improved by simply providing (D) in employee illness prevention and gain as much as $200 billion through improving performance of workers if they simply provided (E) by preventing illness among employees and gain as much as $200 billion through improved worker performance if they simply provided
正解:E
A项中的improving和E的improved相比较,为什么解释说improving表示动作的过程,而这里的逻辑意思应该是performance已经被提高,其结果造成了$200billion的收益。所以要用improved,但是要表达improve已经完成了呢,平行位置的preventing不也是ving的形式么,难道我没有理解句意么?
求助。。。求助。。。
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