燃油来自燃油泵或来自APU直流燃油泵。( )
A.Fuel comes from the fuel check valves or the APU dc fuel pump. B.Fuel comes from the boost pumps or the APU fuel tank. C.Fuel comes from the boost pumps or the APU dc fuel pump.正确答案C
燃油来自燃油泵或来自APU直流燃油泵。( )
A.Fuel comes from the fuel check valves or the APU dc fuel pump. B.Fuel comes from the boost pumps or the APU fuel tank. C.Fuel comes from the boost pumps or the APU dc fuel pump.正确答案C