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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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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Stop search and return to（）.

A.keel
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Please（）search and rescue.

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