单项选择题
A.start the mechanical ventilation system for the engine room
B.operate the fuel shut-off for the engine room
C.operate all fire extinguishing equipment aboard the vessel on board the vessel，including starting the fire pump
D.All of the above
单项选择题 Fire protection regulations for towing vessels allow all of these types of fuel piping，EXCEPT（）.
单项选择题 Fire protection regulations apply to those towing vessels（）.
单项选择题 Fire protection and manning regulations for towing vessels state that the Master or person in charge must ensure that all crew members who have not participated in the drills or received the safety orientation（）.