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The biggest safety threat facing airlines today may not be a terrorist with a gun, but the man with a portable computer in busin
The biggest safety threat facing airlines today may not be a terrorist with a gun, but the man with a portable computer in busin
admin
2013-03-09
47
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】______
【B11】
选项
答案
is the passenger who can’t hear the instructions to turn off his radio because the music’s too loud
解析
is the passenger who can’t hear the warning to turn off his radio because of the loud music
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0
大学英语六级
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