首页
登录
职称英语
The biggest safety threat facing airlines today may not be a terrorist with
The biggest safety threat facing airlines today may not be a terrorist with
游客
2023-09-26
74
管理
问题
The biggest safety threat facing airlines today may not be a terrorist with a gun, but the man with the portable computer in business class. In the last 15 years, pilots have reported well over 100 incidents that could have been caused by electromagnetic interference. The source of this interference remains unconfirmed, but increasingly, experts are pointing the blame at portable electronic devices, such as portable computers, radio and cassette players and mobile telephones.
RTCA, an organization which advises the aviation industry, has recommended that all airlines ban such devices from being used during "critical" 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 individual airlines. And although some airlines prohibit passengers from using such equipment during take-off and landing, most are reluctant to enforce to 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 portable devices emit radiation which affects those wavelengths which aircrafts use for navigation and communication. But, because they have not been able to reproduce these effects in a laboratory, they have no way of knowing whether the interference might be dangerous or not.
The fact that aircrafts may be vulnerable to interference raises the risk that terrorists may use radio systems in order to damage navigation equipment. As worrying, though, is the passenger who can’t hear the instructions to turn off his radio because the music’s too loud. [br] It can be inferred from the passage that the author ______.
选项
A、is in favor of prohibiting passengers’ use of electronic devices completely
B、has overestimated the danger of electronic devices completely
C、hasn’t formed his own opinion on this problem
D、regards it as unreasonable to exercise a total ban during flight
答案
A
解析
推理题。作者开篇指出“The biggest safety threat facing airlines today may not be a terrorist with a gun,but the man with the portable computer in business class.”可见作者对电磁干扰是非常关心的,对飞机上使用电子设备是非常忧虑的,因此也就不难推理出“作者赞成彻底禁止使用电子设备。”
转载请注明原文地址:https://tihaiku.com/zcyy/3046280.html
相关试题推荐
SafetyPrecautions(预防措施)ofTVMonitor(1)
Oncethereisathreattoourwatersupplywatercanquicklybecometheonlytha
WhenevertravelingonShanghaiAirlines(SAL)flightswithpaidtickets,you
Latelyyou’vebeenheatingalotofautocompaniestalkingaboutsafety.Andat
Apartfromdeathsfromillnesses,oneofthebiggestthreatstoone’slifeinhi
Carsof2000willtravelthenation’shighwaysinnever-before-dreamed-ofsafety
AttheinternationalterminalforNorthwestAirlinesatJohnF.KennedyInternati
Whatissomepeople’sexcusefornotwearingsafetybelts?Theysaytheyare____
Therapidlyexpandingnumberofautomobilesthreatensafurtherescalationinth
Latelyyou’vebeenhearingalotofautocompaniestalkingaboutsafety.Andat
随机试题
Whatwillthewomanspendtheeveningdoing?[br]Listenagaintopartoftheco
AccordingtoWorldHealthOrganization,howmanypeopleamkilledbyoutdoorair
[originaltext]NewresearchfromStatisticalResearchshowsthattheInterne
影响企业生产能力的因素中,固定资产设备的数量包括()。A.正在运转的和正在检修
分批零件法要分别计算零件、部件的成本和产品的成本,而分批法只计算产品的成本,不单
产品的开发管理是商业银行市场营销的起点,那么产品开发的目标是()。A.吸引
Thechangeinthatvillagewasmiraculou
外汇市场的参与者包括( )。A.外汇经纪人 B.客户 C.外汇银行
下列各项中,属于血府逐瘀汤配伍特点的是( )。A.活血行气相伍 B.升降并用
进入21世纪以来,国际证券市场发展的一个突出特点是()。A:证券市场网络化 B
最新回复
(
0
)