单选题Besides saving distance along the track line，another advantage of the Scharnow Turn over the Williamson Turn in a man overboard situation because（）.Ait is fasterBit can be used in both the immediate action and the delayed action situationsCin fog，if the turn is started as soon as the man goes over，the vessel will be at the point where he went over when the turn is completedDit returns the vessel to the original track line on a reciprocal course
单选题
Besides saving distance along the track line，another advantage of the Scharnow Turn over the Williamson Turn in a man overboard situation because（）.
A
it is faster
B
it can be used in both the immediate action and the delayed action situations
C
in fog，if the turn is started as soon as the man goes over，the vessel will be at the point where he went over when the turn is completed
D
it returns the vessel to the original track line on a reciprocal course
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名词解释题线路中心线 center line of track