A.is more flexible and has the ability to absorb shock because of its weight
B.is less subject to wear and damage from abrasion
C.requires little maintenance
D.All of the above
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A.a rotation
B.a revolution
C.space motion
D.nutation
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
最新試題
A celestial body will cross the prime vertical circle when the latitude is numerically（）.
A “Mediterranean moor” should be used when（）.
A backlash below a lock is defined as a（）.
A buoy with a composite group-flashing light indicates a(n)（）.
A CO2 extinguisher on a ship which has lost 10% of its charge must be（）.
A copy of the Articles of Agreement，less the signatures，is required to be posted. This document is called the（）.
A continuous watertight bulkhead on a ship is normally also a(n)（）.
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 celestial body’s complete orbit around another body is（）.
A “l(fā)iner” in riveted construction of a vessel is a(n) （）.