單項選擇題

A negative metacentric height （）.

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

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單項選擇題

A navigator fixing a vessel’s position by radar （）.

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

單項選擇題

A natural fiber rope can be ruined by dampness because it may （）.

A.rot
B.shrink
C.stretch
D.unlay