A.aground
B.at anchor
C.not under command
D.being towed
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A.average wind conditions
B.tidal currents
C.magnetic variation
D.average limits of field ice
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
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Many of the lights on this coast are placed so high as to be frequently obscured by（）.
After the boat is at the top of the davit heads，the davit arms begin moving up the tracks and are stopped by the（）.
The program of graphical predictions of height against time for a period of up to seven consecutive days is contained in（）.
The Coast Radio Stations are found in（）.
An orange flag showing a black circle and square is a（）.
A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.
For details of these and other lights the larger scale charts and Admiralty Lists should be （）.
Of the following，（）is not likely found in The Mariners Handbook.
An inflatable liferaft should be manually released from its cradle by（）.
A man aboard a vessel，signaling by raising and lowering his outstretched arms to each side，is indicating（）.