单选题Propulsion engines and the vast majority of auxiliary generator engines are designed to allow a generous through-flow of scavenge air in order to control （）Athe lubricating oil consumptionBthe turbine blade temperatureCthe flow rate of fuelDscavenge air pressure
单选题
Propulsion engines and the vast majority of auxiliary generator engines are designed to allow a generous through-flow of scavenge air in order to control （）
A
the lubricating oil consumption
B
the turbine blade temperature
C
the flow rate of fuel
D
scavenge air pressure
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