首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
The library of congress in Washington, D.C., which【C1】______ the largest collection of books in the world, is fighting a battle
The library of congress in Washington, D.C., which【C1】______ the largest collection of books in the world, is fighting a battle
admin
2010-02-17
67
问题
The library of congress in Washington, D.C., which【C1】______ the largest collection of books in the world, is fighting a battle against paper deterioration. The【C2】______ of the old books, often yellowed and torn,【C3】______ crumble when they are touched. The main culprit in the battle is the acidic paper that has【C4】______ making books since the nineteenth century.
Air pollution and moisture【C5】______ the problem.【C6】______ , the books that are most【C7】______ destruction are not the oldest books. The paper in books produced【C8】______ the last century was made【C9】______ cotton and linen rags,【C10】______ are naturally low in acid. And the Gutenberg bible,【C11】______ five centuries ago, was made of thin calfskin, and is in【C12】______ good shape. But in the nineteenth century, with widespread literacy bringing a demand for a cheaper and more plentiful【C13】______ of paper, the industry began using 【C14】______ treated wood pulp for making paper.【C15】______ the chemical in these paper that is causing today’s problem. This problem of paper deterioration is one of【C16】______ concern. France, Canada, and Austria are all doing research into the new methods of deacidification. A new technology has been【C17】______ recently, in fact, that allows for mass deacidification of【C18】______ books at the same time. It costs less than microfilming and 【C19】______ preserves books in their original form.【C20】______ there will soon be treatment facilities all over the world to preserve and deacidify library book collections.
【C14】
选项
A、naturally
B、carefully
C、chemically
D、physically
答案
C
解析
The industry... making paper的意思是:工厂开始用经过化学处理的木浆造纸。因此正确答案是C。
转载请注明原文地址:https://kaotiyun.com/show/DcnK777K
0
专业英语四级
相关试题推荐
PassageTwoAccordingtotheauthor,whatisthereasonforprocrastination?
PassageThree(1)Youdonotneedtoplayinabandtobepartoftheburgeoning"gigeconomy".Nearlyeveryonehasski
PassageTwo(1)Procrastinationcomesinmanydisguises.Wemightresolvetotackleatask,butfindendlessreasonstodef
Abroadpublicdiscussionofenvironmentalproblemsbeganinthemid-1980s,whenthefirst"green"groupsformedinopposition
______werereportedbytheweatherstationinChicago.
Itishardtotrackthebluewhale,theocean’slargestcreature,whichhasalmostbeenkilledoffbycommercialwhalingandis
Itishardtotrackthebluewhale,theocean’slargestcreature,whichhasalmostbeenkilledoffbycommercialwhalingandis
Thenewsitemreporteda(n)______.
Whatisreportedtohavecausedthedeathofatleast17people?
TheRussianofficial’svisittoChinaaimsat______.
随机试题
图示三种应力状态(a)、(b)、(c),答案正确的是()。
背景资料:某水闸加固工程,闸室共3孔,每孔净宽为8.0m,底板坝面高程为20.0m,闸墩顶高程32,0m,坝顶以上为混凝土排架、启闭机房及公路桥。加固方案为:底板坝面增浇20cm厚混凝土,闸墩外包15cm厚混凝土,拆除重建排架、启闭机房及公路桥
甲公司为增值税一般纳税人,2016年10月20日收购免税农产品一批,支付购买价款100万元,另发生保险费8万元,装卸费4万元,途中发生1%的合理损耗,按照税法规定,购入的该批农产品按照买价11%的扣除率计算抵扣进项税额。该批农产品的入账价值为()万
注册会计师应当获取由治理层和管理层提供的所有已知关联方名称的信息,并进行复核;同时针对信息的完整性实施审计程序的有()。
有人说,高科技是爱情的杀手,那会让人少了太多“见字如面”的撕裂感。足球也是一样,过于潮流且缺少个性的_________踢法,很容易让人_________在欧盟一体化的世界里,仿佛分不清俱乐部和国家队的区别,亦找不见国家队名头背后的_________。填入划
下图中的②是由①经过2次切割而形成的立体图形,以下哪一项可以折叠成该立体图形()。
[*]
线性表的链式存储结构与顺序存储结构相比,链式存储结构的优点有()。
Advertisingmedialikedirectmail,radio,televisionandnewspapers_______toincreasethesalesofindustrialproducts.
Duringthetwentiethcentury,theUnitedStatesparticipatedintwomajorwarsthatrequiredthenationto【C1】________itsresour
最新回复
(
0
)