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
In the early 1950s the researchers who produced the first clad glass optical fibers were not thinking of using them for communic
In the early 1950s the researchers who produced the first clad glass optical fibers were not thinking of using them for communic
admin
2018-01-27
70
问题
In the early 1950s the researchers who produced the first clad glass optical fibers were not thinking of using them for communications.【C1】H______, fiber optics was already a well-established commercial technology when the famous paper by Kao and Hockham,【C2】______ (claim)the use of low-loss optical fibers for communication, appeared in 1966. The first low-loss silica fiber was described in【C3】______which appeared in October of 1970. The date of this publication is sometimes【C4】______(cite)as the beginning of the era of fiber communication. Although this development did receive【C5】______(consider)attention in the research community at the time, it was far from inevitable that a major industry would evolve.
The technological barriers appeared formidable because there were serious doubts as to 【C6】wh______these fiber components could ever be produced economically enough, but the market potential was very significant.【C7】______(consequence), research and development activity expanded rapidly, and a number of important issues were【C8】re______during the early 1970s. During the middle and late 1970s, the rate of progress towards marketable products accelerated as the emphasis【C9】______(shift)from research to engineering. Fibers with losses【C10】 app______the Rayleigh limit of 2 dB/km at a wavelength of 0. 8 μm were produced.
By 1980 improvement in component performance, cost, and reliability led to major commitments on the part of telephone companies.
【C5】
选项
答案
considerable
解析
此处需要形容词形式修饰名词attention。considerable attention相当多的关注。此句可译为:尽管当时这项技术在研究领域确实引起了极大的关注,但要发展成一个重要产业还相差甚远。
转载请注明原文地址:https://kaotiyun.com/show/YXNK777K
本试题收录于:
C类竞赛(非英语专业本科)题库大学生英语竞赛(NECCS)分类
0
C类竞赛(非英语专业本科)
大学生英语竞赛(NECCS)
相关试题推荐
Childrenareinventinganewlexiconforelectroniccommunicationwitharangeofjargonandsymbolsthatadultsfindhardtou
Childrenareinventinganewlexiconforelectroniccommunicationwitharangeofjargonandsymbolsthatadultsfindhardtou
Childrenareinventinganewlexiconforelectroniccommunicationwitharangeofjargonandsymbolsthatadultsfindhardtou
Childrenareinventinganewlexiconforelectroniccommunicationwitharangeofjargonandsymbolsthatadultsfindhardtou
Childrenareinventinganewlexiconforelectroniccommunicationwitharangeofjargonandsymbolsthatadultsfindhardtou
Childrenareinventinganewlexiconforelectroniccommunicationwitharangeofjargonandsymbolsthatadultsfindhardtou
—David.It’sgoodtomeetyou.______—Threeyears,butI’mthinkingaboutstoppingsoon.—Why’sthat?—It’stimeforachange,
Hawaiitypically______whenyouarethinkingofaholiday,butitisalsoagoodexampleofdiversityandharmonyintheUnitedS
Thetermcultureshockwasintroducedforthefirsttimein1958todescribethe【D1】______producedwhenapersonmovestoaco
随机试题
窦房结能成为心脏正常起搏点的原因是()
下列关于资本市场线的说法错误的是()。
与弗里德曼的货币需求函数不同,凯恩斯的货币需求函数更重视()的主导作用。
甲在一刑事附带民事诉讼中,被法院依法判处罚金并赔偿被害人损失,但甲的财产不足以全部支付罚金和承担民事赔偿。下列关于如何执行本案判决的表述哪一项是正确的?()
工业革命以来,两百余年的时间,生产力的飞速提高造就了昌盛的工业文明,在人类为自己创造的奇迹______时,却丝毫不曾察觉已经在透支未来,外部性、知识与技术的瓶颈,以及人性的______让工业文明在创造辉煌的同时也走向了尽头。填入划横线部分最恰当的一项
根据超调汇率决定模型,下列哪种情形是不真实的?()[中央财经大学2011研]
对企业制定的政策,在系统需求定义中,属于下列()内容。
请在【答题】菜单下选择【进入考生文件夹】命令,并按照题目要求完成下面的操作。注意:以下的文件必须保存在考生文件夹下。文君是新世界数码技术有限公司的人事专员,国庆节过后,公司招聘了一批新员工,需要对他们进行入职培训。人事助理已经制作了一份
ASherwoodHouseisonlyastone’sthrowawayfromthecitycentreandyetprovidesastress-freeandrelaxingatmosphereforyo
Theterm"jointinternationalbusinessventure",jointventureforshort,hascometomeanmanythingstomanypeople.Itsometi
最新回复
(
0
)