A.increases the size of foam bubbles formed
B.increases the rate of foam production
C.improves the extinguishing properties of foam
D.gives the nozzleman more freedom of movement，since it can be placed anywhere in the hose line
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A.four-stranded sisal line
B.three-stranded cotton line
C.sail twine
D.two-stranded hemp cord
A.broaching the anchor
B.shifting the anchor
C.walking the anchor
D.weighing the anchor
A.out
B.off
C.down
D.away
A.was treated
B.would be treated
C.being treated
D.be treated
A.stretches too much
B.is too difficult to make fast
C.parts too readily
D.is too susceptible to mildew
最新試題
The firing of a red star signal may mean（）.
The holding power of an anchor is the（）.
The head of the bend is the（）.
In the International Code of Signals，the code signal meaning I require immediate assistance is（）.
The Coordinator Surface Search in a SAR situation should display by day（）.
If your vessel is dragging her anchor in a strong wind，you should（）.
The heaviest type pallet is the（）.
It’s not advisable to cut（）the power supply.
It was demanded that the injured crewmembers（）at once.
In a storm，the windward lines of a ship’s mooring system provide（）.