The adoption of orphans and physically challenged children has been a subject of publicdebate _____ a fire in an unregistered orphanage last month.A.according toB.in case ofC.ever since D.such as
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C解析试题分析：考查介词短语：A. according to根据B. in case of以防C. ever since自从D. such as例如，句意：自从上个月的一个未注册的孤儿院大火事件后，收养孤儿和身体有残疾儿童一直是公众讨论的主题。选C。考点：考查介词短语辨析
点评：介词的考查重在积累。解题技巧: 1）明确词意 所选