Question

【题目】 Our textbooks are made ____paper while paper is made ____wood.

A. of/ by B. from/ from

C. of/ from D. from/ of

Answer 1

【答案】C

【解析】

试题分析：句意：我们的课本是由纸制成的，而纸主要是由木头制成的。Be made of由……制成，从产品中能看得出原料；Be made from由……制成，从产品中不能看出原料。所以选C。