These doctors are busy day and night, a cure for AIDS.A.bringing onB.pulling onC.taking onD.working

题目简介

These doctors are busy day and night, a cure for AIDS.A.bringing onB.pulling onC.taking onD.working

题目详情

These doctors are busy day and night,        a cure for AIDS.
A.bringing onB.pulling onC.taking onD.working on
题型:单选题难度:中档来源:不详

答案

D
动词短语辨析。bring on引起, 使发展, 提出;穿上;pull on继续拉;穿上;take on雇佣,呈现,承担;work on从事于,进行;句意:那些医生日夜忙碌,进行对艾滋病的治疗。

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