单项选择题
A vessel being towed will show（）.
A.a forward masthead light B.sidelights and a sternlight C.a towing light D.All of the above
单项选择题 A vessel being towed astern shall show at night（）.
单项选择题 A vessel being pushed ahead is required to carry which of the following lights?（）.
单项选择题 A vessel approaching your vessel from 235°relative is in what type of situation?（）.
