◎ 题干
Plastic bags and boxes________ "white pollution" are attracting more and more people's attention.
[     ]
A. are known as    
B. are known for
C. known as    
D. known for
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Plastic bags and boxes________ "white pollution" are attracting more and more people's attention. [ ]A. are known asB. are known forC. known asD. known f…”主要考查了你对  【介词和介词短语】【过去分词】  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。