A buoy having red and green horizontal bands would have a light characteristic of（）.<br>A:group occulting<br>B:composite group flashing<br>C:Morse letter A<br>D:quick flashing

A buoy having red and green horizontal bands would have a light characteristic of（）.
A:group occulting
B:composite group flashing
C:Morse letter A
D:quick flashing

出自：海船船员证

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