单项选择题
An orange and white buoy indicating a vessel-exclusion area will be marked with what symbol? （）
A.Open-faced diamond
B.Diamond with a cross
C.Circle
D.Square
点击查看答案&解析
相关考题
-
单项选择题
A yellow buoy may mark a(n)（）.
A.wreck
B.shoal area
C.anchorage area
D.middle ground -
单项选择题
A yellow buoy may exhibit a(n)（）.
A.fixed red light
B.flashing light
C.white light
D.occulting light -
单项选择题
A white buoy with an orange rectangle on it displays（）.
A.directions
B.dangers
C.exclusion areas
D.All of the above
