单选题White smoke exhausting from a diesel engine can be caused by a （）Ahigh combustion temperatureBhigh compression pressureCcracked cylinder linerDfuel with a high vanadium content
单选题
White smoke exhausting from a diesel engine can be caused by a （）
A
high combustion temperature
B
high compression pressure
C
cracked cylinder liner
D
fuel with a high vanadium content
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