lignin is essential for making paper
7. __ is particularly harmful to photographic materials,
Liguin
Bleach
Acid
Chemical whiteners
8. If the lignin is removed from the paper, the paper will be___________
9. Although free of lignin, paper made from cotton and rag waste can also cost more money than wood pulp paper because___________
10. What we can learn from Paper from Rag is that you had better buy archival materials___________
文章精要
本文主要介绍了我们平常所见所用的纸的复杂性,通过介绍用木头和破布料造纸的过程,使我们对纸的类别、属性有了更深入的了解。
1.A信息明示题。根据题干中的信息提示词corn flake packet可定位到文章第二段,该部分最后提到corn-flake packet在制造过程中比高等级的纸便宜,故本题选A。
2.C信息明示题。根据题干中的信息提示词superiority可定位到文章第三段最后一句,该句提到许多材料都适用于造纸,但最好的是软木、棉花和碎布料,故本题选C。
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