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单项选择题底漆用于出白金属表面, 防止其生锈。()

A、Topside paint is applied to a bare surface to give protective against rust.

B、Undercoat is applied to a bare surface to give protection against rust.

C、Primer coat is applied to a bare surface to give protection against rust.

D、Topcoat is applied to a bare surface to give protection against rust.

  • C
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