单项选择题
用敲锈锤敲去厚锈。（）
A. Heavy rust is removed with a chipping hammer. B. Loose paint and scale is removed with a scraper. C. Heavy rust is removed with a scraper. D. Loose paint and scale are removed with a chipping hammer.
单项选择题 刮刀用来铲去起泡的油漆和锈皮。（）
单项选择题 首楼甲板涂上两度红丹漆和干舷漆。（）
单项选择题 船舶的主体是船壳。（）
