What is the lifesaving signal for You are seen -assistance will be given as soon as possible?（）<br>A:3 white star signals<br>B:Horizontal motion with a white flag<br>C:Vertical motion of a white light<br>D:Code letter K by blinker light

What is the lifesaving signal for You are seen -assistance will be given as soon as possible?（）
A:3 white star signals
B:Horizontal motion with a white flag
C:Vertical motion of a white light
D:Code letter K by blinker light

出自：海船船员证

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