单选题
飞行中,通信频率的转换应由( )完成,除飞机刚离地,由塔台频率转换为预先设定的进近频率外,任何频率的转换必须得到( )的确认。 In flight, the change of communication frequency shall be completed by ( ). Any change of frequency must be confirmed by ( ) except when the aircraft just lifts off the ground and tower frequency is switched to a preset
飞行中,通信频率的转换应由( )完成,除飞机刚离地,由塔台频率转换为预先设定的进近频率外,任何频率的转换必须得到( )的确认。 In flight, the change of communication frequency shall be completed by ( ). Any change of frequency must be confirmed by ( ) except when the aircraft just lifts off the ground and tower frequency is switched to a preset
approach frequency.
A
PF; PM;
B
PM; PF
C
观察员;PF; jump seater;PF
D
PM;观察员; PM; jump seater
答案解析
正确答案:B
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