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
11
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] 【B8】
选项
答案
Currently
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2974588.html
相关试题推荐
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
随机试题
Idon’tthinkitadvisablethatTed______tothejobsincehehaslittleexperien
Theideaoftaxingthingsthatarebadforsocietyhasapowerfulallure.It
在文字的输人过程中,按一次Enter键,则输人一个段落结束符。()
作文课上,李老师说:“作文材料像大海中的浪花,多得数不清……”“不对,像大海中的
女性,86岁,体重45kg。感冒后,咳嗽、咳痰、发热2周以上,胸片显示左上肺斑片
A.解语丹 B.真方白丸子 C.血府逐瘀汤 D.补阳还五汤 E.左归丸合
开办药品批发企业必须具有大学以上学历且为执业药师的是A.市场部负责人 B.企业
固定桥倾斜牙作基牙,其倾斜度的最低限度是A.10° B.20° C.30°
关于管理层次与管理幅度关系的说法,正确的是()。A.两者存在反比的数量关
以下有关电力系统安全稳定的描述,有哪几项正确?()A.静态稳定是指电力系统受到
最新回复
(
0
)