A.average wind conditions
B.tidal currents
C.magnetic variation
D.average limits of field ice
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A.B flammable liquid
B.C flammable liquid
C.D combustible liquid
D.E combustible liquid
A.should always be immediately corrected
B.will always cause a vessel to capsize
C.always results from off-center weights
D.All of the above are correct
A.can use radar information from one object to fix the position
B.should never use radar bearings
C.should only use radar bearings when the range exceeds the distance to the horizon
D.must use information from targets forward of the beam
A.rot
B.shrink
C.stretch
D.unlay
A.spring line
B.bow line
C.stern line
D.breast line
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After being rescued from the vessel accident，the people agreed that they had much to（）.
The Lists of Meteorological Observation Stations can be found in（）.
A man aboard a vessel，signaling by raising and lowering his outstretched arms to each side，is indicating（）.
Mariners not entering the port are（）to keep at least one mile off.
Before personnel are lifted from a vessel in a personnel basket，the vessel should be（）.
The light vessel is reported（）.
The daily predictions of the times and heights of high and low water for a selection of Standard Ports are given in（）.
After being launched from a vessel，totally enclosed survival craft which have been afloat over a long period require（）.
After the boat is at the top of the davit heads，the davit arms begin moving up the tracks and are stopped by the（）.
A person who sees someone fall overboard should（）.