单项选择题
Topside paint is applied to the area of the ship’s （）which is out of water when the ship is loaded.
A.hull B.cabin C.cargo hold D.deck
单项选择题 （）can give a hard-wearing surface and the required color.
单项选择题 Undercoats are used （）the primer before the topcoat.
单项选择题 Primer coats are applied to a bare metal surface to （）protection against rust.
