A racetrack turn would be better than a Williamson turn in recovering a man overboard if （）.<br>A:the man has been missing for a period of time<br>B:the sea water is very cold and the man is visible<br>C:there is thick fog<br>D:the wind was from astern on the original course

A racetrack turn would be better than a Williamson turn in recovering a man overboard if （）.
A:the man has been missing for a period of time
B:the sea water is very cold and the man is visible
C:there is thick fog
D:the wind was from astern on the original course

出自：海船船员证

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