When navigating in thick fog with the

When navigating in thick fog with the radar on，you should（）.

Astation the look-out in the wheelhouse to keep a continuous watch on the radar
Bsecure the sounding of fog signals until a vessel closes within five miles
Cstation a look-out as low down and far forward as possible
Dkeep the radar on the shortest available range for early detection of approaching vessel

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参考解析：

分类：雷达及ARPA的使用题库

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