A.It causes minimal damage
B.It is safer for personnel
C.It is cheaper
D.It is most effective on a per unit basis
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A.Grade A flammable liquid
B.Grade C flammable liquid
C.Grade D combustible liquid
D.Grade E combustible liquid
A.six months
B.one year
C.two years
D.thirty months
A.loss of pay during the period of such use
B.reprimand by the US Coast Guard
C.revocation of license or certificate
D.termination of employment
A.lower most continuous deck not broken by water tight bulkheads
B.after most weather deck above the main strength deck
C.upper or weather deck above the main strength deck
D.deck of light construction below the main or strength deck
A.seaplanes
B.non-displacement craft
C.barges
D.All of the above
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Charts showing the coast of Mexico are produced by the United States（）.
Changing rescuers while carrying out artificial respiration should be done（）.
Clouds form（）.
Compliance with the terms of the load line certificate on a ship is the responsibility of the（）.
Dacron sails，when not in use，may be damaged if（）.
Deficient oxygen content inside a chain locker can be detected with（）.
Coiling new rope against the lay，bringing the lower end up through the center of the coil，then coiling with the lay，in order to remove the kinks，is known as（）.
Denebola is found in what constellation?（）
Chart legends printed in capital letters show that the associated landmark is（）.
Cyclones that have warm sectors usually move（）.