97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

<ruby id="zv0yo"><xmp id="zv0yo"></xmp></ruby>

單項選擇題

Where should life jackets be stowed?（）.

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

你可能感興趣的試題

單項選擇題

Where foam extinguishing systems are provided on a ship，each machinery flat in the protected space must have a(n)（）.

A.coaming
B.alarm
C.drain
D.fire sensor

單項選擇題

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?（）

A.64 cubic feet
B.35 cubic feet
C.100 gallons
D.500 liters

<ins id="pcimq"></ins>