The Coordinator Surface Search (CSS) in a SAR situation should display by night（）.<br>A:deck lights forward and aft<br>B:a white light over two red lights<br>C:a red light，white light，and blue light in a vertical line<br>D:a distinctive signal promulgated by the CSS

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

出自：海船船员证

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