单选题High exhaust temperature and black smoke exhausting from an auxiliary diesel engine can be caused by （）.Aengine overloadBlow combustion temperatureCplugged fuel nozzle holesDexcessive compression pressure
单选题
High exhaust temperature and black smoke exhausting from an auxiliary diesel engine can be caused by （）.
A
engine overload
B
low combustion temperature
C
plugged fuel nozzle holes
D
excessive compression pressure
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