Books are made paper and paper is made wood .A. from; ofB. of ; fromC. of ; of

发布时间：2020-08-22 03:36:54

Books are made     paper and paper is made      wood .
A. from; of     B. of ; from       C. of ; of

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解析：固定结构be made of和be made from都表示有什么制成，前者表示成品和材料没有发生变化；后者表示成品和材料发生了变化。
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