单项选择题
A.cleaning fuel oil, lubricating oil and seawater filter
B.reducing fuel feeding of the main engine appropriately or reducing the pitch angle of propeller
C.using low sea chest
D.closing the skylight and the ventilation opening, which doesn’t affect the normal work of equipments
单项选择题 When ship navigating in rough sea, the correct operation is （）
单项选择题 The load limitation of governor should be reduced when ship navigating at sea, the main reason is to（）
单项选择题 When a ship is entering to narrow waterway and the fuel feeding of the main engine is keeping unchanged, which of the following is the wrong conclusion?（）