单项选择题
Vessels are warned（）in this area.
A.to not anchor B.to anchor not C.not to anchor D.not anchor to
单项选择题 Vessels carrying（）must not willfully wash decks or holds.
单项选择题 Vessels must be（）valid certificate of nationality or certificated of registry or license.
单项选择题 Vessels must not “exceed” a speed of 8 knots in this area.（）.
