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
单项选择题 The indication of a slipping anchor is a(n)（）.
单项选择题 The Coordinator Surface Search (CSS) in a SAR situation should display by night（）.
单项选择题 RESULT OF SEARCH NEGATIVE means（）.
