A.Straight line
B.Arc
C.Parabola
D.Hyperbola
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A.large GM
B.high center of gravity
C.excessive free surface
D.small GZ
A.In the lower level of the pumproom
B.In the middle level of the pumproom
C.In the upper level of the pumproom
D.On the deck outside the pumproom
A.atmospheric pressure
B.wind speed
C.relative humidity and dew point
D.wind chill factor
A.stern is drawn to the bank as the bow sheers off
B.bow sheers toward the bank
C.vessel continues in a straight line，but with greatly reduced maneuverability
D.vessel will be drawn bodily into the bank unless the engines are stopped
A.plug the vents
B.plug the sounding pipes
C.plug the scuppers
D.close the lids on the vents
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Many of the lights on this coast are placed so high as to be frequently obscured by（）.
After being launched from a vessel，totally enclosed survival craft which have been afloat over a long period require（）.
What is the use of the books of Admiralty List of Lights and Fog Signals? Their use is to （）.
Before personnel are lifted from a vessel in a personnel basket，the vessel should be（）.
When an azimuth of the Sun has been taken and the deviation of the standard magnetic compass computed，the watch officer should record the results（）.
An inflatable liferaft should be manually released from its cradle by（）.
The program of graphical predictions of height against time for a period of up to seven consecutive days is contained in（）.
After launching，an inflatable raft should be kept dry inside by（）.
An inflatable liferaft is hand-launched by（）.
Mean high water is the average height of（）.