单项选择题

The rusty plates should be scrapped and brushed to （）(出白金属).

A. clean
B. smooth surface
C. bare metal
D. clear

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单项选择题

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

单项选择题

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

单项选择题

A. Varnish
B. Anti-corrosive paints
C. Heat-resistant paints
D. Anti-fouling paint