A.the introduction of inert gas into a tank with the object of reducing the oxygen content to below 8% by volume
B.the introduction of inert gas into a gas free tank for the purpose of reducing the oxygen content to below 8% by volume
C.the introduction of inert gas into a cargo tank during cargo discharge to replace the volume of discharged cargo
D.All of the above
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A.the office staff
B.the terminal staff
C.the ship's crew
D.the insurance company
A.stretches too much
B.is too difficult to make fast
C.parts too readily
D.is too susceptible to mildew
A.is too expensive for everyday towing usage
B.binds on the cleats
C.parts too readily
D.strethes too much
A.placing bunker on the deck
B.building a stage on which to place the cargo
C.welding steel feet to the deck, on which the cargo is placed
D.erecting vertical pillars under the deck to support the cargo
A.that
B.which
C.who
D.these
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（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.
The company should establish and maintain procedures to control all documents and date which are relevant to（）.
The mean draft of a ship is the draft（）.
The dew point temperature is（）.
When the wave period and the apparent rolling period are the same（）.
Where would you find information about the time of high tide at a specific location on a particular day of the year?（）
Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）
（）is where the crew eat their meals.
What is it called when it is possible to ignite the vapour above the oil?（）
According to the relevant regulation, lifeboat should be powered by（）.