单项选择题
A.In the forepeak
B.In the wheelhouse
C.Throughout the accommodation spaces
D.In locked watertight and fireproof containers on or above the main deck
单项选择题 Where foam extinguishing systems are provided on a ship，each machinery flat in the protected space must have a(n)（）.
单项选择题 When water is used to fight a fire on board a ship，the effect of the weight of the water must be taken into account. How much sea water will increase the weight displacement by one ton?（）
单项选择题 When using carbon dioxide to fight a fire on a bulkhead，the CO2 should be applied（）.