A、Only by yellow high pressure.
B、Only by the brake zccumulator.
C、Either by yellow high pressure or by the brake accumulator.
答案：C
A、Only by yellow high pressure.
B、Only by the brake zccumulator.
C、Either by yellow high pressure or by the brake accumulator.
答案：C
A. Memos
B. Slats/Flaps position
C. Fuel indication.
A. When the Nose landing Gear is retracted.
B. When the Nose landing Gear is downlocked.
C. Always
A. When the AP is not engaged.
B. When the AP is engaged
C. At any time.
A. One of the two directional valves.
B. The enable solenoid valve.
C. The Linear Variable Differential Transducer.
A. To control mask oxygen inlet.
B. To prevent oxygen inlet to mask.
C. To control oxygen supply during tests and mask operation.
A. The Electronic Control Box.
B. The Fuel Control Unit.
C. The IGV Control Unit.
A. Door open, gear up, door close, cancel gear up signal.
B. Door open, gear up, door close, maintain gear up signal.
C. Door open, gear up, door close, cancel door close signal.
A. Yes.
B. No.
A. The failed WHC connects to the other.
B. Both systems are lost.
C. The heating of the related side is lost.
A. Automatically, Transfer valves open to admit fuel to Inner cell.
B. Automatically, Transfer valves close to isolate the Inner cell.
C. Restart of the pumps to suck fuel from the Outer cell.
