A continual worsening of the list or trim of any floating ship indicates（）.

A crew member has suffered frostbite to the toes of the right foot. Which is NOT an acceptable first aid measure?（）

A “spring line” is（）.

A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain（）.

A ballasted vessel sinks enroute to a dry dock. Under these circumstances，the vessel’s owner can claim（）.

A backlash below a lock is defined as a（）.

A CO2 extinguisher on a ship which has lost 10% of its charge must be（）.

A crew member reports that the high-pressure alarm light of a low-pressure CO2 fixed fire extinguishing system is illuminated. The most probable cause of this condition would be that（）.

A buoy with a composite group-flashing light indicates a(n)（）.

A crew member is having an epileptic convulsion. You should（）.