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

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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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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

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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