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
2024-05-12
9
管理
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 【B2】______. The source of this interference remains 【B3】______, but increasingly, experts are pointing the blame at portable electronic 【B4】______such as portable computers, radio and cassette players and mobile telephones. RTCA, an organization which advises the aviation industry, has 【B5】______that all airlines ban such devices from being used during "【B6】______" 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 【B7】______airlines. And although some airlines 【B8】______ passengers from using such equipment during take-off and landing, 【B9】______
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 aircraft use for navigation and communication. But because 【B10】______
The fact that aircraft may be vulnerable to interference raises the risk that terrorists may use radio systems in order to damage navigation equipment. As worrying, though, 【B11】______ [br] 【B10】
选项
答案
they haven’t been able to reproduce these effects in a laboratory,they have no way of knowing whetherthe interference might be dangerous or not
解析
they can’t reproduce these effects in a lab,they don’t know if the interference might be dangerous
转载请注明原文地址:https://tihaiku.com/zcyy/3594955.html
相关试题推荐
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Whenherealized______(是阴谋诡计诱使他了合同),hethreatenedtostartlegalproceedingst
Theairlines______.(对学生购买机票给予半价优惠).Incidentally,I’vealreadyboughtmyticke
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
随机试题
DothefollowingstatementsagreewiththeinformationgiveninReadingPassage
WhatcanwelearnaboutPeterfromtheconversation?[originaltext]M:Mybrother
Comparedwiththesameperiodlastyear,thepricehasdroppedalot.与去年同期相比,今年
Thegreatship,Titanic,sailedforNewYorkfromSouthamptononApril10th,
()isapropertyofobject-orientedsof
在中医药理论指导下,研究药物制剂的配制理论、生产技术、质量控制与合理应用等内容的
A.1.61℃和99.55℃ B.-1.61℃和99.55℃ C.1.61℃
毛泽东在《关于正确处理人民内部矛盾的问题》中指出,社会主义社会的基本矛盾仍然是A
()的变化能反映中央银行货币政策的变化,对企业生产经营、金融市场的运行和居
白及微寒黏涩,海螵蛸微温燥涩,二者配伍后的主治病证是()A.尿血 B.崩
最新回复
(
0
)