单项选择题
Fuel oil is pumped by means of （） from the bunker tanks.
A.a transfer pump B.a bilge pump C.a service pump D.a vacuum pump
单项选择题 Fuel is not supplied to the corresponding cylinders due to （）.
单项选择题 Fuel is not supplied to the corresponding cylinder due to a failure of （）.
单项选择题 Fuel is delivered into the combustion space by （）.
