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
42
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.
【B4】
选项
答案
critical
解析
空后的stages表明,本空应填一形容词。critical用作此处意为“危险的”。
转载请注明原文地址:https://kaotiyun.com/show/MV17777K
0
大学英语六级
相关试题推荐
A、Heeditedthreebooks.B、Heboughtthewrongbook.C、Helosthalfofhismoney.D、Hefoundthebookinhishome.B综合理解题。男士说他以半
Lightpollutionistheglowyoucanseeatnightabovecitiesandtowns.Itisaproblemthathasbeenaccompanyingmaneversin
A、Applyfortherefund.B、Closethedoorwhenleaving.C、Takeapart-timejob.D、Findasafedepartment.A事实细节题。对话最后女士建议男士最好马上申请
A、Narrowdownthetopicofherarticle.B、Readandreviseheressay.C、Providesomefactsforheropinion.D、Givehersomeadvic
MyViewonDualDegrees1.近年来越来越多的大学生热衷于修“双学位”2.产生这种现象的原因是……3.你的看法
Agenerationofe-mailing,followedbyanexplosionintexting,haspushedthetelephoneconversationintoseriousdecline,crea
Asgoodsandservicesimproved,peoplewerepersuadedtosendtheirmoneyonchangingfromoldtonew,andfoundthechangewort
Anunidentifiedwitoncesaid,"Laugh,andtheworldlaughswithyou.Snore,andyousleepalone."Yetsnoringisfarfromalau
随机试题
预产期推算方法是按末次月经第一日算起,月份减3或加9,日数加7。()
红细胞血型抗体筛选试验有什么意义?
张某因打伤李某被公安局处以行政拘留15天的处罚,张某不服,申请行政复议。不久,受害人李某向法院提起刑事自诉,法院经审理认为张某的行为已经构成犯罪,判决拘役2个月。下列哪一选项是正确的?()(司考2007.2.47)
在相同的低温热源与高温热源之间工作的卡诺循环,循环1所包围的面积S,比循环2所包围的面积S2小,则其静功A与效率η的关系是()。
新建一个工业园区项目,下列哪些费用包括在该工业园区某标准厂房单项工程综合概算中( )。
普通碳素结构钢的强度、硬度较高、耐磨性较好,但塑性、冲击韧性和可焊性差,此种钢材为()。
麦金农修改过的哈罗德一多马经济增长模型表明()。
零基预算方法受原有费用项目限制,可能导致保护落后。()
(2011年联考)诗歌绝不能仅仅停留在纸质媒体上,要充分利用舞台、影视等多种平台,这样才能为人民群众所接受并保持长久的生命力。很多优秀诗歌作品本身具有较高的艺术性,在走向舞台、影视的过程中又融人了表演者的理解和感受,对诗歌进行了“第二次艺术创作”,辅以声光
法学是一门专门以()为研究对象的科学。
最新回复
(
0
)