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
单项选择题 The most probable position of the object of a search at any given time is the（）.
单项选择题 The key to rescuing a man overboard is（）.
单项选择题 The indication of a slipping anchor is a(n)（）.
