单选题Diesel engine automated control systems may utilize sensing devices of dual function, with sensing ranges providing both alarm and engine shut down capability.Which of the key points would only require an alarm sensor?（）ALube oil pressure and temperatureBjacket water pressure and temperatureCEngine over-speedDLube oil sump level
单选题
Diesel engine automated control systems may utilize sensing devices of dual function, with sensing ranges providing both alarm and engine shut down capability.Which of the key points would only require an alarm sensor?（）
A
Lube oil pressure and temperature
B
jacket water pressure and temperature
C
Engine over-speed
D
Lube oil sump level
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