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
48
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、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://jikaoti.com/ti/4nOsFFFM
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
Theseoldbuildingsaregorgeous.
Themakingofweathervanesdevicesfixedonthetopofbuildingstoshowdirectionsofthewindisanancientskill,goingback
Themakingofweathervanesdevicesfixedonthetopofbuildingstoshowdirectionsofthewindisanancientskill,goingback
Heissureofahouse-buildingboomafterthenewinvestmentpoliciesareputintopractice.
Thecityhasdecidedtodoawaywithalltheoldbuildingsinitscenter.
Thetownisfamousforitsmagnificentbuildings
随机试题
最常引起完全无尿的是
患者,男,66岁。2周前患急性下壁心肌梗死,3天来每天稍活动便出现胸痛,持续3~5分钟,休息后可缓解。诊断为
一项筛查试验能将实际无病的人正确地判断为非病人的能力称为
企业计划存年底购买一批机器设备,7月份与销售方达成购买意向,9月份签订了购买合同,但实际购买的行为发生在10月份,则企业应该在()将该批设备确认为资产。
甲有限责任公司收到投资方以库存现金投入的资本,甲有限责任公司应该按投资方在注册资本中所占份额的部分记入()账户。
下列属于我国非金融企业债务融资工具的特点的有()。①融资工具发行对象均为作为银行间债券市场成员的机构投资者②融资工具发行参与方包括审计师事务所、律师事务所、主承销商、评级机构、增信机构等中介服务机构③定价市场化④发行方式市场化
(2009年考试真题)凡以房屋为载体,不可随意移动的附属设备和配套设施,无论在会计核算中是否单独记账与核算,都应计入房产原值,计征房产税。()
创新教育是以()为基本价值取向的教育。
某仓库被窃。经过侦破,查明作案的人是甲、乙、丙、丁四个人中的一个。审讯中,四个人的口供如下:甲:“仓库被窃的那一天,我在别的城市,因此我是不可能作案的。”乙:“丁就是罪犯。”丙:“乙是盗窃仓库的罪犯,因为我亲眼看见他那一天进过仓库。”丁:“乙是在有意陷害我
2050andImmortalityIsWithinOurGraspAeroplaneswillbetooafraidtocrash,yoghurtswillwishyougoodmorningbefore
最新回复
(
0
)