单项选择题
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.
A.wheelhouse control station B.engine room control station C.captains office D.chief engineers office
单项选择题 Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
单项选择题 Diesel engine control can be obtained by the bridge （）.
单项选择题 To determine if the lube oil filter elements need changing, （）.
