单项选择题
A.diving operations B.dredging C.fishing D.mineclearance operations
A vessel shall slacken her speed，stop，or reverse her en...
单项选择题A vessel shall slacken her speed，stop，or reverse her engines，if necessary，to（）.
A.avoid collision B.allow more time to assess the situation C.be stopped in an appropriate distance D.All of the above
A vessel shall be deemed to be overtaking when she can ...
单项选择题A vessel shall be deemed to be overtaking when she can see at night（）.
A.only the sternlight of the vessel B.a sidelight and one masthead light of the vessel C.only a sidelight of the vessel D.any lights except the masthead lights of the vessel
A vessel reduces speed without backing. The rate that h...
单项选择题A vessel reduces speed without backing. The rate that her speed through the water decreases depends primarily on the（）.
A.vessel's horsepower B.sea state C.number of propellers D.vessel's displacement
