Careful surveys have indicated that as many as 50 percent of patients do not ...

作者: tihaiku 人气: - 评论: 0
问题 Careful surveys have indicated that as many as 50 percent of patients do not takedrugs__________directed.
选项 A.like B.so C.which D.as
答案 D
解析 考查as引导方式状语从句。在as引导的方式状语从句中,尤其含有be时,常常会省略一部分,而保留其主要成分,如分词或形容词。句中“take drugs asdirected”为“takedrugs as they are directed”的省略形式。句意为“详细调查表明.多达百分之五十的病人没有按照医嘱服药”。
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