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 the portable computer in bus
The biggest safety threat facing airlines today may not be a terrorist with a gun, but the man with the portable computer in bus
admin
2013-06-02
74
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,【B1】______ have reported well over 100 incidents that could have been【B2】______ by electromagnetic (电磁的) interference. The source of this interference remains unconfirmed, but【B3】______ , experts are pointing the blame at portable electronic 【B4】______ such as portable computers, radio and cassette players and【B5】______ telephones. RTCA, an organization which advises the aviation industry, has【B6】______ that all airlines ban such devices from being used during " 【B7】______ " stages of flight, particularly take-off and landing. Some experts have gone further, calling for a total ban during all flights.【B8】______ , 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,【B9】______ .
The difficulty is predicting how electromagnetic fields might affect an aircraft’s computers. Experts know that portable devices emit radiation which effects those wavelengths (波长) 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.【B11】______ .
【B6】
选项
答案
recommended
解析
转载请注明原文地址:https://kaotiyun.com/show/HqB7777K
0
大学英语六级
相关试题推荐
A、Itisaseriousthreattoitscompetitors.B、Itisnotpowerfulenoughtoaffecttheworldmarket.C、Thecars’qualityisgood
A、Thewomanwantstobuyacomputer.B、Thereisnoneedtoreserveacomputerinadvance.C、Thecomputerscanbebookedupto48
A、Hecan’trecallwherehelefthisportablecomputer.B、He’sgotaterribleheadacheandforgetsthingseasily.C、Hehassomet
A、Problemsthemanhasencounteredwhenwritinghishistorypaper.B、Theman’sbrokencomputer.C、Thereasonwhystaringatthe
Internationalairlineshaverediscoveredthebusinesstravelers,themanorwomanwhoregularlyjetsfromcountrytocountryas
Internationalairlineshaverediscoveredthebusinesstravelers,themanorwomanwhoregularlyjetsfromcountrytocountryas
随机试题
电弧灼眼的原因是什么?怎样防护?
实现分时系统的一种主要方式是()
下列人物中全属于道家的一项是()
A.正链RNA病毒B.负链RNA病毒C.双链RNA病毒D.双链DNA病毒逆转录病毒是
根据《工程咨询成果质量评价办法》,工业建设项目可行性研究报告的质量评价目标包括()。
答辩状、民事调解书、委托书、合同、可行性研究报告、公证书、议案都是司法性文件。()
有的地质学家认为,如果地球的未勘探地区中单位面积的平均石油储藏量能和已勘探地区一样的话,那么,目前关于地下未开采的能源含量的正确估计因此要乘上一万倍。由此可得出结论,全球的石油需求,至少可以在未来五个世纪中得到满足,即使此种需求每年呈加速上升的趋势。为使上
下列关于综合布线的描述中,正确的是
Aestheticthoughtofadistinctivelymodernbentemergedduringthe18thcentury.Thewesternphilosophersandcriticsofthist
Timeisveryimportantinourlives.It【S1】______oureverydaymoments.However,timeneverhadanyimportanceinmylifeuntilI
最新回复
(
0
)