◎ 题干
The research lacks ________ evidence, and therefore, its conclusions are doubtful.
[     ]
A. solid  
B. fierce
C. severe  
D. potential
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“The research lacks ________ evidence, and therefore, its conclusions are doubtful.[ ]A. solidB. fierceC. severeD. potential…”主要考查了你对  【形容词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。