单项选择题
A.furnace to be re-purged
B.electric charge to buildup in the igniter
C.fuel pump to restart
D.dram level to stabilize
单项选择题 Maintaining the lowest possible scavenging air temperature at all times is not recommended due to the possibility of the （）.
单项选择题 In any diesel engine closed freshwater cooling system, the lowest pressure exists at the （）.
单项选择题 With respect to the flow of lubricating oil through a diesel engine, the lube oil coolers are located after filters in order to （）.