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Most of the students haven’t finished their papers on time for __________reasons---one of which was that they carried out a week-long investigation in the countryside.
A.previousB.accurate
C.originalD.various
答案:D
试题分析:考查形容词辨析。A. 先前的;B. 精确的;C. 原始的;D. 各种各样的。句意:大多数的学生因为各种各样的原因没有完成他们的论文---其中的原因之一是他们在进行为期一周的农村调查。故选D。
考点:考查形容词辨析