单项选择题
A.引航员将在一小时后登船。
B.引航员将在一小时内登船。
C.引航员在一小时前登船。
D.引航员在一小时前离船。
单项选择题 When a ship arrives at a foreign port ,for the safety of the ship ,the ship usually needs a pilot to take her into and out of the harbour ,or through the canal.（）
单项选择题 Please tell deckhands to get ready for mooring fore and aft.（）
单项选择题 A ship is made fast to the quayside by mooring lines. （）