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
54
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.
【C1】
选项
A、without
B、with
C、having
D、selling
答案
B
解析
空格后是一种装置,用它来改变火灾时找不到出口的危险境况。表达“用……装置"这层意思就要用介词with。其他几项均不符合句子的意思。
转载请注明原文地址:https://kaotiyun.com/show/rnGd777K
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
Thepassageismeantto ______.Whydidtheauthorbegintodoubthimselfafterthefirstyearofhiswritingcareer?
By"...challengesexplanation"(Line2,Para.1)theauthormeansthat______.Theauthor’spurposeinwritingthesecondparag
GlobalWarmingAttheKyotoconferenceonglobalwarminginDecember1997,itbecameabundantlyclearhowcomplexithasb
LookafterYourVoiceOftenspeakersatameetingexperiencedrymouthsandaskforaglassofwater.Youcansolvethepr
TheDevelopmentofPRTheriseofmultinationalcorporations,globalmarketing,newcommunicationstechnologies,andshrink
WhentheUnitedStatesstockmarketfellin1929,manystockholderswereforcedtoselltheirsharesatludicrouslylowprices.
SouthCarolina’smineralresourcesareabundant,butnotallofthemcanbelucrativelymined.
InternationalTradeSincetheendofWorldWarII,internationaltradehasdevelopeddramatically.Allcountriesinthemo
Ordinaryplantsareunabletosurviveinthedesertmainlybecauseofthechangeableweather.Thethemeofthesecondlastpara
LearningDisabilitiesLearningdisabilitiesareverycommon.Theyaffectperhaps10percentofallchildren.Fourtimesasm
随机试题
PCOS临床床特征是________和________,因此治疗原则是________和________。
A、产肠毒素大肠埃希菌B、侵袭性大肠埃希菌C、肠出血大肠埃希菌D、致病性大肠埃希菌E、肠出血大肠埃希菌O157:H7导致血性腹泻或伴溶血性尿毒症的病原菌:()
风湿性二尖瓣狭窄的手术适应证,下列哪项是不正确的
移位明显的骨折,需要没有移位的骨折,需要
既能清热泻火,又能滋阴润燥的药物是
心电图V2导联检测电极放置的位置是
王京在山东省超凡职业学校的行政工作人员。2008年,王京停薪留职,在学校附近买下一处饭店,准备经营。为了方便在工商管理部门注册登记和领取营业执照,王京与超凡职业学校的领导达成协议,超凡职业学校向工商行政管理局申请登记和办理一切手续,王京给超凡职业学校一笔“
甲、乙、丙三个自然人想要成立一个有限责任公司,他们三人起草了一份章程,规定的下列事项哪项是违反法律的?()
一项关于婚姻的调查显示,那些起居时间明显不同的夫妻之间,虽然每天相处的时间相对要少,但每月爆发激烈争吵的次数,比起那些起居时间基本相同的夫妻明显要多。因此,为了维护良好的夫妻关系,夫妻之间应当注意尽量保持基本相同的起居规律。以下哪项如果为真,最能削弱上述论
国体即国家性质,是国家的阶级本质,是指社会各阶级在国家生活中的地位和作用。我国的国体是()
最新回复
(
0
)