单项选择题
All of the following are engaged in fishing EXCEPT（）.
A.A vessel trawling B.A vessel trolling C.A vessel setting nets D.A vessel tending lines
单项选择题 A vessel with a large GM will（）.
单项选择题 A vessel will NOT show sidelights when（）.
单项选择题 A vessel is tide rode when it is（）.
