单选题An over-speed trip stops a diesel engine when the engine （）Aruns out of fuelBhas low lubricating oil pressureCexceeds a set maximum speedDhas high cooling water temperature
单选题
An over-speed trip stops a diesel engine when the engine （）
A
runs out of fuel
B
has low lubricating oil pressure
C
exceeds a set maximum speed
D
has high cooling water temperature
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