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 tha
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 tha
admin
2009-06-15
140
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(51)directional sound alarms capable of guiding you to the exit.
Sound Alert, a company(52)the University of Leeds, is installing the alarms in a residential home for(53)people in Sommerset and a resource centre for the blind in Cumbria.(54) produce a wide range of frequencies that enable the brain to determine where the(55)is coming from.
Deborah Withington of Sound Alert says that the alarms use most of the frequencies that can be(56) by humans. "It is a burst of white noise(57)people say sounds like static on the radio," she says. "Its life-saving potential is great."
She conducted an experiment in which people were filmed by thermal-imaging cameras trying to find their way out of a large(58)room. It(59)them nearly four minutes to find the door(60)a sound alarm, but only 15 seconds with one.
Withington studies how the brain(61)sounds at the university. She says that the(62) of a wide band of frequencies can be pinpointed more easily than the source of a narrow band. Alarms(63)the same concept have already been installed on emergency vehicles.
The alarms will also include rising or falling frequencies to indicate whether people should go up(64)down stairs. They were(65)with the aid of a large grant from British Nuclear Fuels.
选项
A、Alarms
B、Alarm
C、The alarm
D、The alarms
答案
D
解析
因为这种警告装置已在上文中提到:第一段中的directional sound alarms,第二段中的 installing the alarms in a residential home...,所以,这里的alarms是特指,要用定冠词。选项C是错误的,因为它是单数形式。
转载请注明原文地址:https://kaotiyun.com/show/YJhd777K
本试题收录于:
职称英语理工类基础题库职称英语分类
0
职称英语理工类基础
职称英语
相关试题推荐
A.Morrison’sSurveyandFindingsB.CommentsonCurrentGuidelinesC.TheRelationofSexuallyTransmittedDiseasestoIUDComp
TheSafenessofIUDsforHIV-positiveWomen1.WomeninfectedwiththemostcommonformofHIVmaysafelyusetheintrauterined
Themakingofweathervanesdevicesfixedonthetopofbuildingstoshowdirectionsofthewindisanancientskill,goingback
WhichofthefollowingusesofnanotechnologyisNOTmentionedinthepassage?Howcannanotechnologybeusedtomakeadrugmo
A.WhatisZYBAN?B.WhatarethesideeffectsoftakingZYBAN?.C.WhoinventedZYBAN?D.HowlongshouldItakeZYBAN?E.Ho
IntheUS,aperson’scompanybuyshimorherhealthinsurance.TheinternationalstudentsintheUSworkharderthantheAmeri
ThepassageindicatesthatancienttreatmentsforinjuryanddiseasewereItisbelievedbyscientiststhattraditionalmedicin
It’salmost5o’clock;timetoquit.
Manypeoplewronglybelievethatwhenpeoplereacholdage,-theirfamiliesplacetheminnursinghomes.Theyareleftinthe(51)
TheWorld’sLongestBridgeRumor’hasitthatalegendarysix-headedmonsterlurksinthedeepwatersoftheTyrrhenianSeabetw
随机试题
下列哪篇作品不是“三苏”所作()
解释回归分析的含义,并说明其与相关分析的联系。
咀嚼运动的动力来自于
与延髓相连的脑神经是
连接在载体上的最合适的半抗原数目是
为来访团体预定住宿房间时,不应该考虑的因素有()。
在以清朝为背景的电视剧中,我们经常看到大臣们被皇上召见时,要对皇上行三拜九叩大礼,这主要是受封建社会三纲五常伦理观念的影响。我们应如何看待这一现象?()
截至2011年年底,全国共有社会服务业机构129.8万个,比上年增长2.3%,职工总数1129.8万人,固定资产总值为6989.8亿元,比上年增加6.1%。社会服务业增加值2459.8亿元,比上年增长22.1%,占第三产业比重的1.2%。截至2011年年底
指令XLAT通常用于查表操作,在使用该指令前,应把有的偏移首地址送入( )。
Thepredictabilityofourmortalityratesissomethingthathaslongpuzzledsocialscientists.Afterall,thereisnonaturalr
最新回复
(
0
)