单项选择题
A.applied B.supplied C.placed D.watered
Before an area can be repainted, preparation is （）.A.go...
单项选择题Before an area can be repainted, preparation is （）.
A.good B.useless C.necessary D.bad
Loose paint and scale are removed with （）.A. a chipping...
单项选择题Loose paint and scale are removed with （）.
A. a chipping hammer B. a scraper C. a lining brush D. saw
We can remove the heavy rust on the plate with a （）.A.s...
单项选择题We can remove the heavy rust on the plate with a （）.
A.scraper B.hammer C.chipping hammer D.saw
