An authorized light to assist in the identification of submarines operating on the surface is a(n)（）.<br>A:blue rotating light<br>B:intermittent flashing amber/yellow light<br>C:flashing white light<br>D:flashing sidelight

An authorized light to assist in the identification of submarines operating on the surface is a(n)（）.
A:blue rotating light
B:intermittent flashing amber/yellow light
C:flashing white light
D:flashing sidelight

出自：海船船员证

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