用完整句子简要回答下列问题:1)What are the duties and responsibilities of captain?2) What are the duties of first officer?3)What are the duties and responsibilities of flight attendants?
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The primary flight control system uses conventional control wheel, column and pedals to _____ the primary flight control surfaces, ailerons, elevators and rudder.
A. command
B. commence
C. communicate
D. commend
The ailerons provide roll control around the airplane’s _________ axis. The ailerons are positioned by pilots’ control wheels.
A. longitudinal
B. vertical
C. lateral
D. opposite
The primary flight control system uses __________ control wheel, column and pedals linked mechanically to hydraulic power control unitswhich command the primary flight control surfaces.
A. controversial
B. conventional
C. modern
D. modernized
Theailerons provide______controlaroundtheairplane's_______axis.
A. pitch,lateral
B. roll,longitudinal
C. yaw,vertical
D. stall,horizontal