单项选择题
At 1920，the buoy forward of your starboard beam is（）.
A.an interrupted quick flashing buoy B.Hog Island Lighted Bell Buoy C.South Light Buoy D.Sand Shoal Inlet Lighted Buoy "A"
单项选择题 At 1810，you sight a buoy on your starboard side labeled “19”. This buoy marks（）.
单项选择题 At 1810，a red buoy bears 010° relative. This buoy marks（）.
单项选择题 At 0845，you are approaching the entrances to Thimble Shoal Channel. What channel must you use?（）
