◎ 题干
The scientific study shows that once _____ cigarettes, one will find it hard to get out of it.
[     ]
A. lost to
B. concentrated on
C. impressed on
D. addicted to
◎ 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 scientific study shows that once _____ cigarettes, one will find it hard to get out of it. [ ]A. lost to B. concentrated on C. impressed on D. addicted …”主要考查了你对  【动词短语】  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。