单项选择题
Under the rules, the term vessel includes（）.
A.non-self-propelled raft B.seaplanes C.hovercrafts D.All of the above
单项选择题 I（）rather not shift the rice to hatch No.2.
单项选择题 If there’s a fire aboard your vessel, you should first（）.
单项选择题 If two sailing vessels are running free with the wind on the same side, which one must keep clear of the other?（）.
