A.transverse
B.disagonal
C.longitudinal
D.vertical
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A.acceleration greater than on conventional vessels
B.acceleration less than on conventional vessels
C.acceleration the same as on conventional vessels
D.no acceleration
A.help keep the deck dry
B.prevent stress concentrations on the stringer plate
C.protect against twisting forces exerted on the frame of the vessel
D.reinfo ce th eside stringers
A.as it warms up it becomes heavier than air
B.the way it reacts with sea water
C.the strong odor it produces
D.its low temperature causes frostbite or freezing
A.PV valves
B.warning signs
C.flame screens
D.stop-check valves
A.at its goose neck to such a extent
B.at it's goose neck to such an extent
C.at it's goose neck for such a extent
D.at its goose neck to such an extent
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The ISM code is part of（）.
What is a CORRECT reply to a pilot’s request, How’s your heading?（）
The dew point temperature is（）.
（）is the act of allocating space to containers on board of a container ship in the order of the discharge ports.
In the Northern hemisphere northerly winds may cause temperature（）.
How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）
When the wave period and the apparent rolling period are the same（）.
（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.
Fog is likely to occur when there is little difference between the dew point and the（）.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.