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
The biggest safety threat facing airlines today may not be a terrorist with a gun, but the man with a portable computer in busin
The biggest safety threat facing airlines today may not be a terrorist with a gun, but the man with a portable computer in busin
admin
2014-03-22
49
问题
The biggest safety threat facing airlines today may not be a terrorist with a gun, but the man with a portable computer in business class. In the last 15 years, pilots have reported well over 100【B1】______that could have been caused by electromagnetic interference. The source of this interference remains【B2】______, but increasingly, experts are pointing the blame at portable electronic【B3】______, such as portable computers, radio and cassette players and mobile telephones. RTCA, an organisation which advises the aviation industry, has recommended that all airlines ban such devices from being used during "【B4】______" stages of flight, particularly take-off and landing. Some experts have gone further, calling for a total ban during all flights. Currently, rules on using these devices are left up to【B5】______airlines. And although some airlines prohibit passengers from using such equipment during take-off and landing, most【B6】______enforce a total ban, given that many passengers want to work during flights.
The difficulty is predicting how electromagnetic fields might affect an aircraft’s computers. Experts know that【B7】______devices emit radiation which affects those wavelengths which aircraft use for navigation and communication. But because they haven’t been able to reproduce these effects in a laboratory, they【B8】______knowing whether the interference might be dangerous or not.
The fact that aircraft may【B9】______interference raises the risk that terrorists may use radio systems in order to damage【B10】______equipment. As worrying, though, is the passenger who can’t hear the instructions to turn off his radio because the music’s too loud.
【B10】
选项
答案
navigation
解析
空后的equipment表明,本空应填一形容词或名词。本文主要讲的是电子设备对飞机的干扰,因此恐怖分子使用无线电系统的目的应该是破坏飞机的导航设备,navigation equipment意为“导航设备”。
转载请注明原文地址:https://kaotiyun.com/show/fV17777K
0
大学英语六级
相关试题推荐
A、Tooffersomethingunique.B、Togivegiftstothecustomers.C、Tobepolitetoallthecustomers.D、Tohavedrive-inservicea
A、Inapostoffice.B、Inahotel.C、Inapoliceoffice.D、Inahospital.B场景推断题。男士希望女士在第二天早上六点整用电话叫醒他,女士表示同意并询问男士住哪个房间。由此推断,对话发生
A、Theywillreleasemanypollutantsintotheair.B、Theiremissionsmaketheplanetevenwarmer.C、Nuclearenergyisakindofd
A、Thehighereducationhaslostitssignificance.B、Moreandmoreyoungpeoplecanenterthecollege.C、Manyhighschoolstudent
TheCaseAgainstRetirementAh,retirement!Beforethe1950s,itwassomethingonlythewealthycouldaffordtodo.Everyone
A、Hewantstolivealone.B、Hecan’tbearhisroommate.C、Hecan’taffordtoliveinthedorm.D、Hewantstomakefriendswithd
A、Havearest.B、Haveacupofcoffee.C、Useeyedrops.D、Sleepearlyinthenight.A由对话结尾提到的Butthebestprescriptionistotak
A、Lookintothematter.B、BringMillybacktolife.C、Freehimfromascandal.D、Keepthewholethingasecret.B选项均以原形动词开头表明,本题
A、Tohelphimpreparefortheconference.B、Totellhimsomethingabouttheconference.C、Toseeifheisreadyforthecomingc
A、TomakeacomparisonbetweenDaveandotherfilms.B、TodiscusstheAmericans’ideasaboutthePresident.C、Totellreadersab
随机试题
正式化
患儿,男性,3岁,幼儿时曾认为是女孩,排尿时尿道口位于会阴,阴茎位于阴囊间。1岁时发现右侧阴囊可触到睾丸,哭闹时左腹股沟突起一肿块。尿道下裂最佳治疗年龄是
骨髓造血开始于
下列除哪组外,均为治疗肝火目赤肿痛的药组
患者于输血过程中出现畏寒、寒战、体温40℃,伴头痛、恶心、呕吐,首先应考虑是
下列属于设计阶段的进度任务的是()。
建设工程的风险识别往往是通过( )方式,在对建设工程风险进行多维分解的过程中,认识工程风险,建立工程风险清单。
某企业采用分期收款方式销售商品,2008年1月份发出商品200件,每件售价100元,销售成本率75%,增值税税率17%,合同约定分7次付款,产品发出时付款40%,以后6个月每月1日付款10%,该企业1月份应结转的主营业务成本为( )元。
想像冲击疗法优于现实冲击疗法之处是()。
在Linux下进行DNS服务时,(57)文件规定了解析使用的服务及服务的顺序,例如可以通过在该文件中加入“Orderhosts,DNS,NIS”设定先访问DNS再访问NIS的域名解析顺序。
最新回复
(
0
)