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Migraine, the most debilitating common form of headache, afflicts perhaps 18 mil
Migraine, the most debilitating common form of headache, afflicts perhaps 18 mil
游客
2025-02-25
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问题
Migraine, the most debilitating common form of headache, afflicts perhaps 18 million Americans, who collectively lose 64 million workdays
a year, and they cost the nation $50 billion in medical expenses and lost
work time.
选项
A、a year, and they cost the nation $50 billion in medical expenses and lost
B、a year and thus cost the nation $50 billion in medical expenses and lost
C、a year, so as to cost the nation $50 billion in medical expenses and lost
D、a year that costs the nation $50 billion in lost medical expenses and
E、a year, which thus cost the nation $50 billion in lost medical expenses and
答案
B
解析
由题意知,cost和lose是定语从句中的并列谓语动词;A中they的出现不仅多余,且改变了句子的结构,句意随之改变。C中so as to的目的状语与主句之间用逗号隔开是不允许的,且so as to表目的,与句意不符。D中有两个缺陷:(1)cost的原动作执行者本是Americans,现在却变成了a year,改变了句意(逻辑搭配也不当);(2)lost本用于修饰worktime却改为修饰medical expense,也改变了句意。E中同样有两个缺陷,(1)cost的动作执行者变成了64 million workdays;(2)同D(2)。B正确,大意是:从整体上讲,这些美国人一年要损失掉64 million个工作日,若以医疗费用和损失工作时间计价,他们花去了这个国家500亿美元。
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