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
29
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.
【C3】
选项
A、slow
B、deaf
C、blind
D、lame
答案
C
解析
从文章标题以及文章内容和本句后面部分resource center for the blind,可以推断这里最好的选择就是C。
转载请注明原文地址:https://kaotiyun.com/show/wnGd777K
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
ChangesinMuseumsMuseumshavechanged.Theyarenolongerplacesthatone“should”visit,theyareplacestoenjoyandl
FoodandHealthThefoodyoueatdoesmorethanprovideenergy.Itcanhaveadramaticeffectonyourbody’sabilitytofig
ThepeoplewhospeakEsperantohopethatthelanguagesomedaywillbecometheinternationallanguagefortrade,science,anddip
CementwasseldomusedinbuildingtheMiddleAges.
Ifnooneobjects,Mr.Benwillbethenextchairman.
Shewasunwillingtogobutshehadnochoice.
LearningDisabilitiesLearningdisabilitiesareverycommon.Theyaffectperhaps10percentofallchildren.Fourtimesasm
TomAlciereMr.Alcierehadnottriedtoconcealthis.HepostedvigorousnotesonInternetdiscussionboards;one,inOctob
Herlifeisbecomingmorediverse.
Havingdecidedtorentaflat,wecommencedcontactingalltheaccommodationagenciesinthecity.
随机试题
刑事诉讼中为取保候审的犯罪嫌疑人提供担保的保证人,需具备相应条件。下列哪些属于保证人的条件?
评述汉代的经今古文之争。(四川大学2013年中国通史真题)
下列关于债权人免除债务的说法,正确的是()。
肺心病患者使用洋地黄类药物时应以_______为原则。
楗高决策水平的关键是如何选准目标。
患者男,2月前发生脑梗,现病情稳定,肢体功能良好,无痉挛,无肌力低下,口齿清楚,但患者不能按指令指出自身口、鼻、眼等身体部位,能说出牙刷的作用,但不能正确使用牙刷。患者出现的失认症属于
下列关于特别行政区制度的说法,哪些是正确的?
在无形资产评估实践中,对法律和合同同时分别规定无形资产的有效期限和收益期限的,但时间长短不同,()来确定期限。
为了满足机体对必需脂肪酸的需求,在脂肪的供应中植物来源的脂肪应不低于总脂肪量的()。
Afterstayinginthisoldtownforsixmonths,Lucyfoundthatpeoplewholiveinsmalltownsoftenseemmorefriendlythanthos
最新回复
(
0
)