单选题An authorized light to assist in the identification of submarines operating on the surface is a(n)（）.Ablue rotating lightBintermittent flashing amber/yellow lightCflashing white lightDflashing sidelight
单选题
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
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