单选题A diesel engine is turned at normal cranking speed, but fails to fireThis can occur from （）Alow lube oil temperatureBlow starting air temperatureCair in the fuel injectionDwater in the starting air system
单选题
A diesel engine is turned at normal cranking speed, but fails to fireThis can occur from （）
A
low lube oil temperature
B
low starting air temperature
C
air in the fuel injection
D
water in the starting air system
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