单选题Failure to open the diesel engine test cocks after a long period of shutdown, prior to starting may result in （）Aan air bound fuel systemBdamage to cylinder heads and pistonsCexcessive fuel injectionDexcessive air valve lift
单选题
Failure to open the diesel engine test cocks after a long period of shutdown, prior to starting may result in （）
A
an air bound fuel system
B
damage to cylinder heads and pistons
C
excessive fuel injection
D
excessive air valve lift
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