◎ 题干
It's known that the paper for books and magazines ________ from wood.
[     ]
A.are made
B.is made
C.has been made
D.is being made
◎ 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“It's known that the paper for books and magazines ________ from wood.[ ]A.are made B.is made C.has been made D.is being made…”主要考查了你对  【被动语态】【一般现在时】  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。