单项选择题
A vessel is found to be seaworthy after a complaint in writing to the American Consul by the Chief and Second Mates. The cost of the survey is to be paid by the（）.
A.American Consul B.Chief and Second Mates C.Vessel's agent D.vessel's owners
单项选择题 A vessel engaged in（）shall not impede the passage of any other vessel navigating within anarrow channel or fairway.
单项选择题 A vessel aground would show the same dayshape as a（）.
单项选择题 A survey (special purpose mark) buoy（）.
