单项选择题
The cargo，when（），should be completely covered with plastic.
A.stow B.stowing C.stowed D.be stowed
单项选择题 The cargo is liable to burn.Please keep it（）the engine room.
单项选择题 The cargo fall over the dock is called the（）.
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（）.
