单项选择题

Anchoring and fishing in this area are（）.

A.danger
B.dangerous
C.dangerously
D.dangering

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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（）.

A.go full ahead on the engine(s)
B.back away a few lengths to clear the buoy and then go ahead on the engines
C.go half ahead on the engines and put the rudder hard right
D.go half ahead on the engines and pass upstream of the buoy