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 that
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
admin
2009-06-15
68
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(51)all that with directional (定向的) sound alarms capable of guiding y0uto the exit.
Sound Alert, a company run(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. The alarms produce a(54)range of frequencies that enable the brain to(55)where the sound 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 that people say sounds like static (静电噪音) on the radio," she says. "Its life-saving potential is(57)."
She conducted an experiment in which people were filmed by thermal-imaging (热效应成像) cameras trying to find their(58)out of a large smoke-filled room. It(59)them nearly four minutes to find the door without a sound alarm,(60)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 (精确地确定) more easily than the source of a narrow band. Alarms(63)on the same concept have already been installed on emergency vehicles.
The alarms will also include rising or falling frequencies to(64)whether people should go up or down stairs. They were(65)with the aid of a large grant from British Nuclear Fuels.
选项
A、describe
B、demand
C、consider
D、indicate
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/t7hd777K
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
AliceWalker’sgraphicdepictionofthelivesofBlackpeopleinthesouthhasestablishedherasoneofthemostpromisingcont
Manypeoplewronglybelievethatwhenpeoplereacholdage,-theirfamiliesplacetheminnursinghomes.Theyareleftinthe(51)
Thepassagecouldbeentitled______.Accordingtothepassage,youngpeoplelovecoffeebecauseof______.
Whatdoactivistsworryabout?AccordingtotheKaiserPoll,whichofthefollowingisNOTcorrect?
Wecanlearnalotbyobservingthepositioninwhichamotherholdsherbabyagainstherbody.Thenumberofright-handedmoth
ImportanceofChildren’sOralHealth FebruaryisNationalChildren’sDental(牙齿的)HealthMonth,butinchildrengoodoralcarei
ImportanceofChildren’sOralHealth FebruaryisNationalChildren’sDental(牙齿的)HealthMonth,butinchildrengoodoralcarei
ImportanceofChildren’sOralHealth FebruaryisNationalChildren’sDental(牙齿的)HealthMonth,butinchildrengoodoralcarei
ContinuingMedicalEducationThereisincreasingrecognitionoftheneedforhealthworkerstocontinuetheireducationthro
MostAdultsinU.S.HaveLowRiskofHeartDiseaseMorethan80percentofU.S.adultshavealessthan10-percentriskof
随机试题
WhydoWeUseE-mail?PersonalcomputersandtheInternetgivepeoplenewchoicesabouthowtospendtheirtime.Somema
甲与妻子乙以及儿子丙一家3口出门旅游。途中不幸飞机失事,3人身亡。经清理,夫妻俩共有财产50万元,另外有一套登记为乙所有的住房。这套住房是乙7年前尚未结婚时继承父母的遗产,现在乙的弟弟提出要回房子的要求,甲的父母不同意,双方为此发生纠纷。问:甲、乙、丙
躯体疾病所致精神障碍临床表现的共同特点,不正确的是
车载式激光构造深度仪不适用于()。
行政机制的法律基础在于()。
锤击沉桩时,以下说法中正确的是()。
【背景资料】某高校新建一栋办公楼和一栋实验楼,均为现浇钢筋混凝土框架结构。办公楼地下一层,地上十一层,建筑檐高48m;实验楼六层,建筑檐高22m。建设单位与某施工总承包单位签订了施工总承包合同。合同约定:(1)电梯安装工程由建设单位指定
5,6,11,15,18,33,40,66,()
在考生文件夹下有一个工程文件sjt5.vbp,在该工程中为考生提供了一个通用过程,考生可以直接调用。请在窗体上画一个名称为Text1的文本框;画一个名称为C1、标题为“计算”的命令按钮;再画两个单选按钮,名称分别为Op1、Op2,标题分别为“求500到
Readthearticlebelow.Choosethebestsentencefromthelistonthenextpagetofilleachofthegaps.Foreachgap(1
最新回复
(
0
)