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
2023-08-31
35
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,【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】______ . [br] 【B9】
选项
答案
most are reluctant to enforce a total ban, given that many passengers want to work during flights
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2974589.html
相关试题推荐
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Manyofthemostdamagingandlifethreateningtypesofweathertorrentialr
Theairlines______.(对学生购买机票给予半价优惠).Incidentally,I’vealreadyboughtmyticke
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
随机试题
【S1】[br]【S9】B第三段的首句为这段的主题句,下文用Firstly,Secondly和Thirdly引出了学生从中学毕业后的选择。根据句法的分析,c
Twoyearsagothismonth,Doubledaypublishedahistoricalthrillerwithan
发现左侧舌缘溃疡一月余,迅速增大,进食困难,检查外形见图,颈部淋巴结肿大,最先考
A.高锰酸钾 B.阿托品 C.碳酸氢钠 D.氯解磷定 E.毛果芸香碱用于
关于沥青混凝土路面中封层作用的说法,正确的有()。A、封闭某一层,起保水、防水作
下列关于瘿痈的说法错误的是( )。A.发病前多无感冒、咽痛等病史 B.痛可牵
下列关于T3和T4代谢的叙述,哪一项是错误的A.20.%的T4与T3在肝内失活
下列情况,适合进行钢材期货卖出套期保值操作的有()。A.甲钢材经销商已按固定价
某项目釆用的基准收益率为12%,其基本方案的财务内部收益率为16.2%,现假设建
在借贷记账法下,负债类、所有者权益类的账户,期末是肯定有余额的。()
最新回复
(
0
)