单项选择题
A.weigh down the anchor B.lubricate the anchor C.repel dangerous fish D.smooth the sea
The process of waiting a period of time before pretensi...
单项选择题The process of waiting a period of time before pretensioning an anchor is known as（）.
A.soaking B.settling C.sinking D.bedding in
The most probable position of the object of a search at...
单项选择题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
The key to rescuing a man overboard is（）.A.good communi...
单项选择题The key to rescuing a man overboard is（）.
A.good communication B.a dedicated crew C.good equipment D.well-conducted drills
