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
Singing Alarms Could Save the Blind If you cannot see, you may not be able to find your way out of a burning building—and th
Singing Alarms Could Save the Blind If you cannot see, you may not be able to find your way out of a burning building—and th
admin
2015-07-17
27
问题
Singing Alarms Could Save the Blind
If you cannot see, you may not be able to find your way out of a burning building—and that could be fatal. A company in Leeds could change all that【C1】______directional sound alarmscapable of guiding you to the exit.
Sound Alert,a compa【C2】______the University of Leeds, is installing the alarms in aresidential home for【C3】______people in Sommerset and a resource centre for the blind in Cumbria.【C4】______produce a wide range of frequencies that enable the brain to determine where the【C5】______is coming from.
Deborah Withington of Sound Alert says that the alarms use most of the frequencies that canbe【C6】______by humans. "It is a burst of white noise【C7】______people say sounds likestatic on the radio," she says. " Its life-saving potential is great. "
She conducted an experiment in which people were filmed by thermal-imaging cameras tryingto find their way out of a large【C8】______ room. It【C9】______them nearly four minutesto find the door【C10】______a sound alarm, but only 15 seconds with one.
Withington studies how the brain【C11】______ sounds at the university. She says that the【C12】______ of a wide band of frequencies can be pinpointed more easily than the source of anarrow band. Alarms【C13】______the same concept have already been installed on emergency vehicles.
The alarms will also include rising or falling frequencies to indicate whether people should goup【C14】______ down stairs. They were【C15】______ with the aid of a large grant from BritishNuclear Fuels.
【C14】
选项
A、or
B、and
C、but
D、otherwise
答案
A
解析
根据上半句中的rising or frequencies,这里应填入or,与上半句表达的意思相一致。音频升高表示上楼,音频降低表示下楼。
转载请注明原文地址:https://jikaoti.com/ti/DbysFFFM
本试题收录于:
职称英语理工类A级题库职称英语分类
0
职称英语理工类A级
职称英语
相关试题推荐
TradeUnionsSomescholarshaveassociatedtradeunionswiththemedievalcraftguilds(中世纪的行会),butthereareimportantdi
LookingtotheFutureWhenamagazineforhigh-schoolstudentsaskeditsreaderswhatlifewouldbelikeintwentyyears,t
CollegeSportsintheUSCollegesportsintheUnitedStatesareahugedeal.AlmostallmajorAmericanuniversitieshavef
InvestmentandConsumptionInvestmentinthepublicsector,suchaselectricity,irrigation,publicservicesandtransport
TheRailwayLaborMediationActof1926supportedtheuseofcollectivebargainingtoavertinterruptionofrailservice.
Gooseneckbarnaclesattachthemselvestoobjectssuchasdocksandboats.
CementwasseldomusedinbuildingtheMiddleAges.
Peopleknewlongagohowanearthquakestarts.Thebestwaytoleavethebuildingduringanearthquakeistogetintoalift.
Thefatherwasunwillingtogivehissonthekeystohiscar.
CosmeticSurgerySurgerythatcanimprovethewayapersonlooksisbecomingmoreandmorepopularintheUnitedStates.Th
随机试题
用编码"CSTNET"表示中国科技网,这种编码方式称为()
肾性脑病的症状特点,错误的是
只有一人独自进行复苏时,正确的是双人复苏时,正确的是
国际货物买卖合同的履行会涉及到货物风险的转移。根据1980年《联合国国际货物销售合同公约》的规定,在有关货物销售合同已经按照公约要求的方式被注明的前提下,关于风险转移,下列表述错误的是:(2008—卷一—100,任)
根据城镇土地使用税法规规定,城镇土地使用税的征收范围,包括()内的国家所有和集体所有的土地。
【2014.广西】《中华人民共和国义务教育法》修订的时间是()。
绝对剩余价值是指在必要劳动时间不变的条件下,由于延长工作日的长度而生产的剩余价值;相对剩余价值是指在工作日长度不变的条件下,通过缩短必要劳动时间而相对延长剩余劳动时间生产的剩余价值;超额剩余价值是指企业由于提高劳动生产率而使商品的个别价值低于社会价值的差额
Sowhatisdepression?Depressionisoftenmoreaboutangerturned【C1】______thanitisaboutsadness.Butit’susually【C2】______
BeingpluggedintoaniPodisafeatureofadolescence.Anewstudysuggeststhatteenswhospendtoomuchtimelisteningtomus
ThearomaofchocolateperfumestheairoftheRued’AssasinParis.EnteringChristianConstant’sstate-of-the-artboutique,yo
最新回复
(
0
)