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
2023-08-25
39
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 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. [br] 【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://tihaiku.com/zcyy/2956336.html
相关试题推荐
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
TheUnitedNationsDevelopmentProgrammesaystheworldisfacingawatercr
TheUnitedNationsDevelopmentProgrammesaystheworldisfacingawatercr
TheUnitedNationsDevelopmentProgrammesaystheworldisfacingawatercr
随机试题
FiveCommonMistakesinConversationandTheirSolutionsI.Notlis
中国每年都要为庆祝农历新年举办电视联欢晚会,其中,最具代表性的当属央视春晚(SpringFestivalGala)。1983年开始推出的央视春晚可谓是
项目管理的特点不包括以下哪项?()A.创新性 B.单向性 C.成果的不
A.瞬间效果评价 B.即时效果评价 C.近期效果评价 D.中期效果评价
力值较弱、作用力范围小,通过牙在生理范围内的移动,以矫治错畸形的力是A.正畸力
膳食指南(DG)
C为小调的属音,该小调的平行调是( )。A.C小调 B.F大调 C.G大调
当前我国货币政策的主要传导媒介是()。A.商业银行 B.保险公司 C.
安排斗谱时,因外观性状相似易混淆,但功效不同,而不宜装于同一药斗中的饮片()A
炉膛爆炸事故是指炉膛内积存的可燃性混合物瞬间同时爆燃,从而使炉膛烟气侧突然升高,
最新回复
(
0
)