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His comprehensive surveys have provided ...

His comprehensive surveys have provided the most      statements of how, and on what basis, data are collected.

A.original B.ambiguous C.explicit D.arbitrary

 

C 【解析】 考查形容词辨析。句意:他的全面调查提供了最明确的陈述,说明了数据是如何收集的,是基于什么基础收集的。A. original原始的;B. ambiguous模糊的,有歧义的;C. explicit明确的;D. arbitrary武断的。根据下文的“说明了数据是如何收集的,是基于什么基础收集的”可知,他的陈述很明确清晰。故选C。  
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