单选题Before engaging the turning gear and turning the diesel engine, which of the following operation should be done except （）Aopen the indicator cocksBsupply some LO to cylinder liner wall with lubricatorCput the fuel handle in the stop positionDpump up the air bottle
单选题
Before engaging the turning gear and turning the diesel engine, which of the following operation should be done except （）
A
open the indicator cocks
B
supply some LO to cylinder liner wall with lubricator
C
put the fuel handle in the stop position
D
pump up the air bottle
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