单选题A diesel engine may be hard to start if the ()Aair intake is restrictedBengine is cranked too fastCvibration dampener is faultyDexhaust back pressure is low
单选题
A diesel engine may be hard to start if the ()
A
air intake is restricted
B
engine is cranked too fast
C
vibration dampener is faulty
D
exhaust back pressure is low
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