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 immigrants in America are playing an important role in the national science development. Mr. Obama says that part of the sol
The immigrants in America are playing an important role in the national science development. Mr. Obama says that part of the sol
admin
2019-03-10
155
问题
The immigrants in America are playing an important role in the national science development. Mr. Obama says that part of the solution【C1】______America’s economic problems should come from its universities and research laboratories. Yet these【C2】______in America are now manned disproportionately(不均衡地)by immigrants, who made【C3】______47% of scientists and engineers in America with PhDs. William Kerr, an economist at Harvard Business School, used name-matching software to【C4】______the ethnicity(种族)of each of the 8 million scientists who h ad【C5】______an American patent since 1975. He found that the share of patents【C6】______to scientists born in America【C7】______between 1975 and 2004. The share of all patents given to scientists of Chinese and Indian【C8】______living n America more than tripled,【C9】______4.1% in the second half of the 1970s to 13. 9% in the【C10】______between 2000 and 2004. Some of these patents may have been given to American-born children of earlier【C11】______, but Mr. Kerr reckons that most changes over time【C12】______from fresh immigration.
But does all this emigration from the developing world【C13】______the originating countries’ capacity【C14】______innovation? A new【C15】______uses data on the patents cited by scientists working in India in their【C16】______to America’s patent office. It finds that proximity .(邻近) 【C17】______matter. Indian patent applicants【C18】______to research by people in India much more often than they cite work by those【C19】______In that sense, having many scientists【C20】______India does weaken innovation there.
【C10】
选项
A、time
B、years
C、decade
D、decades
答案
B
解析
句子表达的是自2000年到2004年间,有四年的跨度,因此用复数years。
转载请注明原文地址:https://kaotiyun.com/show/Q05K777K
本试题收录于:
浙江省大学英语三级题库大学英语三级分类
0
浙江省大学英语三级
大学英语三级
相关试题推荐
Collisionbetweenanaircraftandoneormorebirdsistermedabird-strike.Pilotssometimesrecordabirdstrikewhileatcruis
Peoplethroughouttheworldenjoyhikingtowildernesscampsites,usuallyonestablishedtrails.Thisactivityiscalledbackpac
Insomecountries,______iscalled"equality"doesnotreallymeanequalrightsforallpeople.
Thereisprobablynolimittowhatsciencecandointhewayofincreasingpositiveexcellence.(76)Healthhasalreadybeengrea
Animportantpartofpolicestrategy,rapidpoliceresponseisseenbypoliceofficersandthepublicalikeasofferingtremendo
(81)市场经济下的公平竞争是促进经济繁荣的重要因素,但竞争过了头:则其负面影响就不容忽视。(82)在剧烈竞争下,市场需要往往会让位于竞争需要。各高科技公司不得不投下巨额资金发展新项目。还得避开知识产权纠纷。结果是改头换面,换汤不换药的技术和产
(81)市场经济下的公平竞争是促进经济繁荣的重要因素,但竞争过了头:则其负面影响就不容忽视。(82)在剧烈竞争下,市场需要往往会让位于竞争需要。各高科技公司不得不投下巨额资金发展新项目。还得避开知识产权纠纷。结果是改头换面,换汤不换药的技术和产
Thegiantpanda,thecreaturethathasbecomeasymbolofconservation,isfacingextinction.Themajorreasonislossofhabita
ParkingProblem;Forbiddenin【D1】______percentofstreetsReason:Buildingapartmentsand【D2】______ismoreprofitable,hencefew
ParkingProblem;Forbiddenin【D1】______percentofstreetsReason:Buildingapartmentsand【D2】______ismoreprofitable,hencefew
随机试题
假如某罪的法定刑为“3年以上10年以下有期徒刑”,关于量刑,下列哪一选项是正确的?()
A.体现了患者对医务人员的无比信任B.体现了医务人员对病人人格和权利的尊重C.有利于保护医务人员个人的权利D.有利于医护工作的开展和医护质量的提高E.可以避免因泄密而给病人带来危害和发生医患纠纷
某投机者以2.55美元/蒲式耳的价格买入1手玉米合约,并在价格为2.25美元/蒲式耳时下达一份止损单。此后价格上涨到2.8美元/蒲式耳,该投资者可以在价格为()美元/蒲式耳时下达一份新的止损指令。
一般来说,基金经理决定资产配置的比例或范围。()
可以帮助秘书识别公司可能发生冲突的征兆有()。
心理咨询师在会谈时使用修饰性反问的弊端是容易使()。
下面不符合我国事业单位岗位设置管理原则的一项是()。
设二维随机变量(X,Y)的概率密度为f(x,y)=,求:(Ⅰ)(X,Y)的边缘概率密度fX(x),fY(y);(Ⅱ)Z=2X-Y,的概率密度fZ(z);(Ⅲ)
JPEG是一种适合连续色调、多级灰度、彩色或单色、【】图像的压缩标准,
GoogleClosesInonDoubleClickDealScoreoneforGoogle.TheFederalTradeCommissionruledDee.20thatitwouldnotbloc
最新回复
(
0
)