A、lettered
B、spherical
C、showing a white light
D、All of the above
更多“A preferred-channel buoy may be（）.”相关的问题
A、A.light characteristic B、B.color of the uppermost band C、C.shape of an unlighted buoy D、D.color of the light
A、fixed red light B、Morse (A) white light C、composite group-flashing light D、yellow light
A、preferred-channel buoys B、starboard- or port-side buoys C、special marks D、safe water buoys
A、A.Group flashing B、B.Composite group flashing C、C.Interrupted quick flashing D、D.Fixed and flashing
A、white light whose characteristic is Morse (A) B、group-occulting white light C、composite group-flashing (2 + 1) white light D、composite group-flashing (2 + 1) red or green light
A、A.odd or even numbers B、B.the color of their top band C、C.the location of the buoy in the channel junction D、D.the buoy's light rhythms
A、the starboard side of the channel B、the centerline of the channel C、an obstruction where the preferred channel is to starboard D、special purpose areas
A、A safe-water buoy will display red and white vertical stripes of reflective material B、All reflective material is white because it is the most visible at night C、A special-purpose mark will display either red or green reflective material to agree with its shape D、A preferred-channel buoy displays either red or green reflective material to agree with the top band of color
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