单选题An indication of a diesel engine air intake being partially clogged, is （）.Alow firing pressure and low exhaust temperaturesBlow firing pressure and normal exhaust temperaturesChigh firing pressure and low exhaust temperaturesDhigh firing pressure and high exhaust temperatures
单选题
An indication of a diesel engine air intake being partially clogged, is （）.
A
low firing pressure and low exhaust temperatures
B
low firing pressure and normal exhaust temperatures
C
high firing pressure and low exhaust temperatures
D
high firing pressure and high exhaust temperatures
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