单选题Which of the following conditions may contribute to the formation of deposits on the blades of the turbocharger turbine?（）APoor combustionBHigh cylinder oil consumptionCLeaking exhaust valvesDAll of the above
单选题
Which of the following conditions may contribute to the formation of deposits on the blades of the turbocharger turbine?（）
A
Poor combustion
B
High cylinder oil consumption
C
Leaking exhaust valves
D
All of the above
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