单项选择题
Before entering or leaving a harbour, the ship should be given a （）(彻底) cleaning.
A.throw B.through C.thorough D.though
单项选择题 Please （）(擦掉) the wet paint on the deck.
单项选择题 Look here, the paint is （）(脱落).
单项选择题 The paint is a little （）(厚).
