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
2016-07-17
58
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.
【C7】
选项
A、where
B、what
C、that
D、how
答案
C
解析
选择A、B、D均不能构成语义连贯的句子,而且语法上也有问题。选项C能使句子结构成为“It is…that”的强调句型。
转载请注明原文地址:https://kaotiyun.com/show/r2Gd777K
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
LookafterYourVoiceOftenspeakersatameetingexperiencedrymouthsandaskforaglassofwater.Youcansolvethepr
LookingtotheFutureWhenamagazineforhigh-schoolstudentsaskeditsreaderswhatlifewouldbelikeintwentyyears,t
TheDeer’sDeathHeranclose,andagainstoodstill,stoppedbyanewfear.Aroundhimthegrasswaswhisperingandalive.
Penicillinwasdiscoveredbychancein1928.
HawaiiHawaii’snativeminorityisdemandingagreaterdegreeofsovereigntyoveritsownaffairs.Butmuchofthearchipel
HawaiiHawaii’snativeminorityisdemandingagreaterdegreeofsovereigntyoveritsownaffairs.Butmuchofthearchipel
InvestmentandConsumptionInvestmentinthepublicsector,suchaselectricity,irrigation,publicservicesandtransport
BiologistshaveascertainedthatspecializedcellsconvertChemicalenergyintomechanicalenergy.
Efficientairservicehasbeenmadeavailablethroughmoderntechnology.
SingingAlarmsCouldSavetheBlindIfyoucannotsee,youmaynotbeabletofindyourwayoutofaburningbuilding-andtha
随机试题
举例说明哪些复句不能直接变换成句群,哪些句群不能直接变换成复句。
永明声律说及其在诗歌史上的地位。
在X和S中
不属于马尾神经受压的症状为
开发研究的主要要特征是以()为目的,将基础研究和应用研究与市场需求和具体的产品联系起来。
在Word编辑状态下,通过()可以选中整个文档内容。
操作系统的基本职能是()。
在RDBMS层次中,仅次于应用层的是______。
有以下函数:intfun(char*s,char*t){while((*s)&&(*t)&&(*t++==*s++));return(*s一*t);}函数的功能是()。
Inamovetodisseminatefacultyresearchandscholarshipmorebroadly,theFacultyofArtsandSciences(FAS)votedonTuesdayto
最新回复
(
0
)