单项选择题
A.out of B.away from C.from away D.out from
The cargo fall over the dock is called the（）.A.burton f...
单项选择题The cargo fall over the dock is called the（）.
A.burton fall B.down fall C.hatch fall D.stay fall
The Captain of the Port has closed to navigation，and bu...
单项选择题The Captain of the Port has closed to navigation，and buoyed，a section of a harbor. These buoys would be painted（）.
A.red or green to conform with the other lateral aids B.red and green horizontally-striped C.solid yellow D.white with orange marks
Red lights may appear on（）.A.horizontally banded buoysB...
单项选择题Red lights may appear on（）.
A.horizontally banded buoys B.vertically striped buoys C.yellow buoys D.spherical buoys
