首页
登录
职称英语
The library of congress in Washington, D.C., which【C1】______ the largest co
The library of congress in Washington, D.C., which【C1】______ the largest co
游客
2024-10-27
1
管理
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. [br] 【C19】
选项
A、still
B、yet
C、ever
D、else
答案
A
解析
此句的意思是:它比微缩摄影耗费要少,却能保存书的原状。Yet用于否定句中。因此正确答案是A。
转载请注明原文地址:https://tihaiku.com/zcyy/3819972.html
相关试题推荐
Thecongress,bYatwo-thirdvoteineachhouse,may______anamendmenttotheCo
Enteringthereadingroomofthelibrary,______readingthere,preparingforthe
ThelibraryofcongressinWashington,D.C.,which【C1】______thelargestco
ThelibraryofcongressinWashington,D.C.,which【C1】______thelargestco
ThelibraryofcongressinWashington,D.C.,which【C1】______thelargestco
ThelibraryofcongressinWashington,D.C.,which【C1】______thelargestco
ThelibraryofcongressinWashington,D.C.,which【C1】______thelargestco
ThelibraryofcongressinWashington,D.C.,which【C1】______thelargestco
ThelibraryofcongressinWashington,D.C.,which【C1】______thelargestco
ThelibraryofcongressinWashington,D.C.,which【C1】______thelargestco
随机试题
Heleftordersthatnothing______toucheduntilthepolicearrivedhere.A、should
TheyraisedpricesandadvertisedonTV,______(而不是降低产品成本).insteadofcuttingt
Manychildrenfirstlearnthevalueofmoneybyreceivinganallowance.The
以下关于报警阀及末端试水装置的说法()错误。A.报警阀组控制的喷头只保护不
项目团队人员转移首先应满足的条件是()A.项目人力资源管理计划中所描述的人员转移
下述内容中属于卫生法律的是A.《医疗机构管理条例实施办法》 B.《中外合资、合
患者,女,27岁,已婚。产后恶露35天不止,色深红、质稠粘、有臭味,口燥咽干,舌
经营杠杆系数衡量企业的经营风险,下列各项措施中可以降低企业经营杠杆系数的是()。
现场质量检查控制包括()。A.开工前检查 B.工序交接检查 C.隐蔽工
最新回复
(
0
)