A、To record radio communications during take off and landing.
B、To record crew conversations as soon as an incident occurs.
C、To record crew conversations and communications.
答案：C
A、To record radio communications during take off and landing.
B、To record crew conversations as soon as an incident occurs.
C、To record crew conversations and communications.
答案：C
A. The directors directly.
B. The type A DEUs
C. The type B DEUs
A. At 100ft.
B. At 200ft.
C. At 400ft.
A. Only on the NDs.
B. On the PFDs and the NDs.
C. On the Upper ECAM DU.
A. An ILS course pointer.
B. A lateral deviation bar.
C. A and B.
A. Automatically at the end of flight.
B. Manually.
C. A and B.
A. The two wing tank pumps are in operation.
B. Only one wing tank pump supplies its associated engine.
C. Both pumps are stopped.
A. Electrically.
B. Pneumatically.
C. Hydraulically.
A. The prinary parameters.
B. The secondary parameters.
C. Both the primary and the secondary parameters.
A. Active.
B. Damping.
C. Re-centering.
A. The GCR and PR relays stay energized.
B. The GCR and PR relays are de-energized.
C. The GCR relay stays energized and PR relay is de-energized.
