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
2013-12-21
39
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/ueVK777K
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
Whenheleavesthecompanynextyear,he________forthiscompanyforthirtyyears.
Sheisabetterspeakerthan________intheclass.
Ifyouexplainedthesituationtoyourlawyer,he________abletoadviseyoumuchbetterthanIcan.
A、Hiswife.B、Hischildren.C、Theimmigrants.D、Fivefoundations.D根据原文可知,巴菲特计划逐渐将他的大部分股票捐给五个基金会。因此答案为D。
PassageThreeWhatdoes"disappearingundertheradar"probablymeaninPara.2?
ArecentsurveyofhumanresourcedirectorsintheUKuncoveredsomecommonmistakesthatjobapplicantsmakeintheinterviewp
Thewordorphrasethatyouusetoopenyouremailaccountmayprovideakeytoyourpersonalityaswellastoyour【D1】______,a
Ontheafternoonof6thFebruary1958,eightmembersoftheManchesterUnitedfootballteamdiedinaplanecrashinMunich.The
【T1】意识是一种奇妙地反应、思考和选择的能力,是人类最伟大的进化性成就。(consciousness)但是,再好的东西也不宜过多。【T2】幸运的是,人类也具备了不假思索办事的能力。(performtasks)完成这些复杂行为,像学习如何演奏吉他、说
______hehadforgottentolockthedoor.
随机试题
对于临时来华进行经贸活动的外国法人等,我国采取的认许方式是()
某企业上年末资产负债表部分项目的余额如下:货币资金460000元,应收账款89000元,存货264000元,固定资产原价1020000元,累计折旧366000元。该企业本年度发生下列经济业务:(1)购入甲材料一批,买价为40000元,增
根据政府采购法律制度的规定,采购文件的保存期限自采购结束之日起至少保存()。
关于工伤认定,下列说法正确的有()。
学习《荆轲刺秦王》时,教师要求学生注意“往而不反者,竖子也”一句中“反”的用法,下列语句中不包含同类用法的是()。
下列科学家与其发现的理论对应错误的是()。
一天,小张出差回到单位发现办公桌上的台历已经有7天没有翻了,就一次翻了7张,发现这7天的日期加起来,得数恰好是77,问这一天是几号?()
李惠个子比胡戈高;张凤元个子比邓元高;邓元个子比陈小曼矮;胡戈和陈小曼的身高相同。如果上述断定为真,以下哪项也一定为真?
林某2011年5月购入2000份债券,每份10元,共支付税费共计100元。林某在10月以每份12元的价格卖出其中的1500份,支付卖出债券的税费总计120元。林某就该转让行为应缴纳个人所得税()元。
Religiousphilosopherthathewas,HenryMorederivedhisconceptionofaninfiniteuniversefromtheinfiniteGodinwhomhebe
最新回复
(
0
)