单项选择题
A.in B.at C.on D.to
We shall send a（）to the bow. Because the fog is too thi...
单项选择题We shall send a（）to the bow. Because the fog is too thick.
A.watchman B.look-out C.look out D.looker
The pilot will（）your ship at 2015 hours tonight.A.aboar...
单项选择题The pilot will（）your ship at 2015 hours tonight.
A.aboard B.board C.go ahead D.go forward
（）scale charts are used for harbors.A.SmallB.LargeC.Lor...
单项选择题（）scale charts are used for harbors.
A.Small B.Large C.Loran D.Route
