【题目】 The lack of health facilities and necessary protection for medical workers partly ______ the epidemic (蔓延) of Ebola.
A. accounted for B. headed for
C. called for D. sent for
在线课程【答案】A
【解析】
试题分析: 考查固定短语A. accounted for……的原因；B. headed for前往某地；C. called for请求；D. sent for派送。句意：缺乏医疗设施和对医护人员必要的保护在一定程度上导致了埃博拉病毒的蔓延，故选A。