A.increasing the righting moment
B.decreasing the vessel's displacement
C.increasing the reserve buoyancy
D.shifting the CG (center of gravity) off center
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A.for the saving of life
B.for fire-fighting
C.for mooring purpose
D.for towing purpose
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The MOST important element in administering CPR is（）.
The length of the steering oar in a lifeboat is（）.
On an oceangoing vessel，for each person a lifeboat (without desalting kits) is certified to carry，the boat must be supplied with（）.
In painting a lifeboat following its overhaul，which parts must be painted bright red?（）
In rough weather，when a ship is able to maneuver，it is best to launch a lifeboat（）.
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The minimum concentration of a vapor in air which can form an explosive mixture is called the（）.
Limit switches（）.
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