单项选择题
The most common kinds of （）used on board ship are as follows: primer coat, undercoat, topcoat, heat-resistant paint, varnish and anti-fouling paint.
A.cement wash B.bitumen C.paint D.varnish
单项选择题 Are there any （）before washing the decks?
单项选择题 The sailors do cleaning and repair work （）the bosun.
单项选择题 The bosun is satisfied （）your work.
