单项选择题
An example of an anchor which has a stock is a（）.
A.Bruce anchor B.Dunn anchor C.Hook anchor D.LWT anchor
单项选择题 After casting off moorings at a mooring buoy in calm weather，you should（）.
单项选择题 A vessel moored with two anchors，sometimes，at an exposed roadstead to（）.
单项选择题 A vessel is wind rode when it is（）.
