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單項選擇題

When ship navigating in rough sea, the first measure taken by the chief engineer to prevent the overload should be（）

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

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