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單項選擇題

The rusty plates should be wiped clean before paint is （）.

A.applied
B.supplied
C.placed
D.watered

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單項選擇題

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

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

單項選擇題

Loose paint and scale are removed with （）.

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

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