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    —Do you believe that paper is made _____ wood?.

    —Yes, I do. And you can see that books are made____ paper.

    A. from; from B. from; of

    C. of; from D. of; of

    B

    【解析】

    试题分析：be made of和be made from都表示“由……制成”，主语为制成品。 be made of 表示制成成品后，仍可看出原材料是什么。be made from 表示制成的东西完全失去了原材料的外形或特征，或原材料在制作过程中发生化学变化，在成品中已无法辨认。本题中，第一空，纸是由木头制成的，已经看不出原材料，用be made from，第二空，书是由纸制成的，能看出原材料，用be made of，故选B。

    考点：be made of和be made from的区别

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