The key to rescuing a man overboard is（）.

单项选择题The indication of a slipping anchor is a（n）（）.

A.Decrease in mooring line length
B.Increase in the opposite amperage
C.Increase in the opposite line tension
D.Decrease in mooring line tension and amperage

单项选择题The Coordinator Surface Search（CSS）in a SAR situation should display by night（）.

A.Deck lights forward and aft
B.A white light over two red lights
C.A red light，white light，and blue light in a vertical line
D.A distinctive signal promulgated by the CSS

单项选择题Stop search and return to（）.

A.keel
B.virgin
C.origin
D.base

单项选择题Please（）search and rescue.

A.make command of
B.take command of
C.get command of
D.have command of

单项选择题MERSAR is replaced by（）.

A.IAMSAR
B.COMSAR
C.ICAO SAR
D.1979 SAR