单选题Which of the following problems should be taken when cleaning the air filter on a diesel engine equipped with a turbocharger?（）AReduce engine speed to idle before removing the filterBSoak the dirty filter in kerosene onlyCBlow out the air inlet with compressed airDCover the air inlet after removing the filter
单选题
Which of the following problems should be taken when cleaning the air filter on a diesel engine equipped with a turbocharger?（）
A
Reduce engine speed to idle before removing the filter
B
Soak the dirty filter in kerosene only
C
Blow out the air inlet with compressed air
D
Cover the air inlet after removing the filter
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