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The research lacks evidence,and therefore,its conclusions are doubtful.

A.solid B.fierce C.severe D.potential

A

【解析】

試題分析:考查形容詞辨析。A.可靠的,可信賴的 B.兇猛的,殘忍的 C.嚴峻的,嚴厲的 D.潛在的,可能的。句意:這個研究缺乏可靠的證據(jù),因此,它的結論是值得懷疑的。故選A。

考點:考查形容詞辨析

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