单项选择题
A.vessel on her port side that is crossing her course B.vessel that is overtaking her C.seaplane on the water D.sailing vessel
It has often been stressed in the Courts that the look-...
单项选择题It has often been stressed in the Courts that the look-out man should，preferably，be stationed forward，unless weather conditions make this（）.
A.possible B.practicable C.impossible D.probably
In the daytime，you see a large sailing vessel on the be...
单项选择题In the daytime，you see a large sailing vessel on the beam. You know that she is also propelled by machinery if she shows（）.
A.a basket B.a black ball C.a black cone D.two black cones
In restricted visibility the speed of a vessel without ...
单项选择题In restricted visibility the speed of a vessel without operational radar may be（）enable effective avoiding action to be taken on sighting another ship.
A.too low to B.too high to C.too high for D.too low for
