题目

The workers risked their lives to restore communications in the disaster－stricken areas，which were cut off ________ the powerful earthquake. A. in case of              B. in spite of C. instead of              D. because of   答案： D 考查介词短语辨析。because of因为。根据句意可判断出强烈的地震与通讯中断是因果关系，所以要用because of。in case of假使，如果。in spite of不管，尽管。instead of代替，作为……的替换。  

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