单项选择题
（）is the process by which the position of the vessel at any moment is found by applying the last well-determined position to the run that has been made since，using for this purpose the ship’s course and the distance being those indicated by log.
A.dead reckoning
B.dead weight
C.dead slow ahead
D.dead slow astern
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相关考题
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单项选择题
Leeway is the（）.
A.difference between the true course and the compass course
B.momentum of a vessel after her engines have been stopped
C.lateral movement of a vessel downwind of her intended course
D.displacement of a vessel multiplied by her speed
