單項(xiàng)選擇題

Before an area can be repainted, preparation is （）.

A.good
B.useless
C.necessary
D.bad

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單項(xiàng)選擇題

Loose paint and scale are removed with （）.

A. a chipping hammer
B. a scraper
C. a lining brush
D. saw

單項(xiàng)選擇題

We can remove the heavy rust on the plate with a （）.

A.scraper
B.hammer
C.chipping hammer
D.saw

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