单项选择题
A.a forward masthead light B.sidelights and a sternlight C.a towing light D.All of the above
A vessel being towed astern shall show at night（）.A.the...
单项选择题A vessel being towed astern shall show at night（）.
A.the lights required for a power-driven vessel underway B.only the required masthead lights C.a sternlight only D.sidelights and a sternlight
A vessel being pushed ahead is required to carry which ...
单项选择题A vessel being pushed ahead is required to carry which of the following lights?（）.
A.Sidelights and a stern light B.Sidelights only C.Sidelights and a small white light at each end D.A small white light at each end
A vessel approaching your vessel from 235°relative is i...
单项选择题A vessel approaching your vessel from 235°relative is in what type of situation?（）.
A.Meeting B.Overtaking C.Crossing D.Passing
