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单选题

To find damage on wires, rub a cloth along them.

A用一块布沿钢索摩擦,以发现损伤。

B要找出电线上的损伤,用一块布在上面擦一擦。

C用布擦干净导线以发现损伤。

正确答案:A (备注:此答案有误)

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