單項選擇題

When entering a channel from seaward，the numbers on buoys（）.

A.are the same as their Light List number
B.are marked in 6 inch figures with retroreflective material
C.increase with the even numbers to starboard
D.decrease with the odd numbers to starboard

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單項選擇題

When approaching a preferred-channel buoy，the best channel is NOT indicated by the（）.

A.light characteristic
B.color of the uppermost band
C.shape of an unlighted buoy
D.color of the light

單項選擇題

When a buoy marks a channel bifurcation，the preferred channel is NOT indicated by（）.

A.the shape of an unlighted buoy
B.the light color of a lighted buoy
C.the color of the topmost band
D.whether the number is odd or even

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When entering a channel from seaward，the numbers on buoys（）.

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When approaching a preferred-channel buoy，the best channel is NOT indicated by the（）.

When a buoy marks a channel bifurcation，the preferred channel is NOT indicated by（）.

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When approaching a preferred-channel buoy，the best channel is NOT indicated by the（）.

When a buoy marks a channel bifurcation，the preferred channel is NOT indicated by（）.