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

單項(xiàng)選擇題

Fire detecting systems on merchant vessels may be arranged to sense （）.

A.smoke
B.rate of temperature rise
C.ionized particles
D.all of the above

你可能感興趣的試題

單項(xiàng)選擇題

On a tank vessel, which of the following substances would be burning in a class "B" fire?（）

A.Oil
B.Wood
C.Rags
D.Electrical wiring

單項(xiàng)選擇題

A class "B" fire would most likely occur in the （）.

A.main switchboard
B.engine room bilge
C.breathing compartment
D.electric fresh water transfer pump

<pre id="hv4nr"><strong id="hv4nr"></strong></pre>

<ruby id="hv4nr"><xmp id="hv4nr"></xmp></ruby>

<pre id="hv4nr"></pre>

<dl id="hv4nr"></dl>