A.a rotation
B.a revolution
C.space motion
D.nutation
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A.greater than the declination and both are of the same name
B.less than the declination and both are of the same name
C.greater than the declination and both are of contrary name
D.less than the declination and both are of contrary name
A.Under any condition
B.If the grounding lasts over 24 hours
C.If it creates a hazard to the environment
D.At the owner's discretion
A.bifurcation
B.fish net area
C.anchorage area
D.dredging area
A.blocks have been overhauled
B.hauling parts of two tackles are attached
C.hauling part leads through the movable block
D.hauling part leads through the standing block
A.actual total loss
B.constructive total loss
C.general average
D.particular average
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A copy of the Articles of Agreement，less the signatures，is required to be posted. This document is called the（）.
A celestial body will cross the prime vertical circle when the latitude is numerically（）.
A CO2 extinguisher on a ship which has lost 10% of its charge must be（）.
A “reaching” course is one in which the wind（）.
A “l(fā)iner” in riveted construction of a vessel is a(n) （）.
A chart with a natural scale of 1:160，000 is classified as a（）.
A “figure eight” knot is used to（）.
A “Mediterranean moor” should be used when（）.
A “fifteen-pound” CO2 extinguisher is so called because（）.
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（）.