词汇与结构At times the pilot may be required to ______ a flight plan for an alternate destination and to carry adequate fuel for this.
A. send
B. file
C. write
D. publish
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词汇与结构The more work a pilot can do on the ground ______ departure, the easier it will be in the air.
A. prior to
B. after
C. when
D. for
词汇与结构Mode S is designed to help avoid over-interrogation of the transponder and to allow ______ collision avoidance.
A. mechanical
B. alternative
C. technical
D. automatic
词汇与结构It is important for pilots to select adequate________ before flight for pilotage navigation.
A. waypoints
B. checkpoints
C. references
D. alternate airports
词汇与结构Malfunction of flight control system may cause an aircraft to _________the course
A. skid off
B. run out of
C. drift off
D. swing off