A.without losing the rhythm of respiration
B.only with the help of two other people
C.by not stopping the respiration for more than 5 minutes
D.at ten minute intervals
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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
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
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Concerning a celestial observation，the azimuth angle is measured from the principal vertical circle to the（）.
Define the acronym MSI（）.
Considering the general circulation of the atmosphere，the wind system between latitudes 30°N and 60°N is commonly called the（）.
Chart legends printed in capital letters show that the associated landmark is（）.
Class I and II private aids to navigation in or along navigable waters of the United States are listed in the（）.
Compared to internal structural plating，the exterior hull plating on a ship is usually（）.
Chronometer error may be found by（）.
Coast Pilots and navigational charts are kept corrected and up-to-date by using the（）.
Changing rescuers while carrying out artificial respiration should be done（）.
Diesel powered industrial trucks on a ship that are provided with safeguards to the exhaust，fuel，and electrical systems are designated（）.