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

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单项选择题

RESULT OF SEARCH NEGATIVE means（）.

A.the search has found nothing
B.the derelict has been found
C.the derelict has been located
D.the derelict has been sighted

单项选择题

One of the signals，other than a distress signal，that can be used by a vessel to attract attention is a(n)（）.

A.red star shell
B.searchlight
C.burning barrel
D.orange smoke signal

单项选择题

Generally，you can best keep a vessel under steering control when the vessel has（）.

A.headway
B.sternway
C.no way on，with engines stopped
D.no way on，with engines full ahead