單項(xiàng)選擇題

The process of waiting a period of time before pretensioning an anchor is known as（）.

A.soaking
B.settling
C.sinking
D.bedding in

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The most probable position of the object of a search at any given time is the（）.

A.datum
B.estimated position
C.search point
D.initial point

單項(xiàng)選擇題

The key to rescuing a man overboard is（）.

A.good communication
B.a dedicated crew
C.good equipment
D.well-conducted drills