单项选择题
Fuel is not supplied to the corresponding cylinder due to a failure of （）.
A.the motor B.the fresh water generator C.the governor D.the fuel pump
单项选择题 Fuel is delivered into the combustion space by （）.
单项选择题 Fuel injection valves should be taken out, cleaned, and lifting checked every （）.
单项选择题 Fuel injection uses the jet pump system and a Woodward type hydraulic （） is used to control engine speed.
