单项选择题
A.The fishing vessel because it is to port of the sailing vessel
B.The fishing vessel because it is fishing
C.The sailing vessel because it is to starboard of the fishing vessel
D.The sailing vessel because it is sailing
单项选择题 On open waters，a power-driven vessel shall keep out of the way of a（）.
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（）.
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（）.