A towing light（）.<br>A:flashes at regular intervals of 50-70 flashes per minute<br>B:is yellow in color<br>C:shows an unbroken light over an arc of the horizon of not less than 180°nor more than 225°<br>D:All of the above

A towing light（）.
A:flashes at regular intervals of 50-70 flashes per minute
B:is yellow in color
C:shows an unbroken light over an arc of the horizon of not less than 180°nor more than 225°
D:All of the above

出自：海船船员证

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