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
2021-03-10
34
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 0.8μm 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
空格前后的句意是:尽管当时这项技术在研究领城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。此处需要形容词形式修饰名词attention。considerable attention相当多的关注,符合句意,故填considerable。
转载请注明原文地址:https://kaotiyun.com/show/jmAK777K
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
在会议上,许多环境科学家呼吁政府制定一项必要的国策,以免土地和水源的进一步恶化。Attheconference,manyenvironmentalscientistsurgedthegovernment————toavoidfurthe
Thereisdistinctionbetweenreadingforinformationandreadingforunderstanding.【B1】______Thefirstsenseistheonein
ThefollowingitemshavebeendestroyedEXCEPT______.
Thepassagedescribeshow【D6】________isthemainreasonwhypeoplelosetheirtemperatwork,anditoffersadvicetohelpempl
Alanguageisasystemofsounds,gestures,orcharactersusedbyhumanstocommunicatetheirideasandfeelings.Thereareabou
Alanguageisasystemofsounds,gestures,orcharactersusedbyhumanstocommunicatetheirideasandfeelings.Thereareabou
Aresearchersaysleadintheenvironmentcouldbeamajorcauseofviolencebyyoungpeople.DoctorHerbertNeedlemanisa【21】_
perfectselectsimilarconfidenthonestInterviewsarean【71】______methodofchoosingthebestpeopleforjobs,yethumanbe
TheguysarefromTexasandCalifornia.
Diamondisthehardestnaturallyoccurringsubstanceknown.Itisthemostpopulargemstoneandbecauseofitsextreme【C1】_____
随机试题
设离散型随机变量X的分布列为:求常数a的值;
房屋产权面积包括套内建筑面积和共有分摊面积。()
企业有关账户月末余额为:“原材料”借方260000元,“库存商品”借方240000元,“生产成本”借方l00000元,“材料成本差异”借方20000元,则月度资产负债表的“存货”项目期末数应填列()元。
甲酒店向该市出租车司机承诺,为酒店每介绍一位客人,酒店向其支付该客人房费的20%作为奖励,与其相邻的乙酒店向有关部门举报了这一行为。有关部门调查发现甲酒店给付的奖励在公司的账面上皆有明确详细的记录。甲酒店的行为属于( )。
下列选项中,属于行业专业发票的是()。
我们通常所说的税收立法解释是指()。
12周岁以下且满2周岁的儿童按成年人全票价的()付费。
对于原型化方法从全面考虑可以罗列若干结论,下述结论中哪一个是不准确的?
项目文件中的“文本文件”包含在()。
用IE浏览器打开如下地址HTTP://LOCAL-HOST:65531/ExamWeb/Index.htm,浏览有关“OSPF路由协议”的网页,将该页面中第四部分OSPF路由协议的基本特征的内容以文本文件的格式保存到考生目录下,文件名为“TestIe.tx
最新回复
(
0
)