To ensure the quality of dock repair C/E should know very well ____.A.the repair standard

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To ensure the quality of dock repair, C/E should know very well ____.

A.the repair standard of main docking repair item

B.the special tool for repair item

C.the skill of repairer

D.the status of docking repair equipment

请帮忙给出正确答案和分析,谢谢!

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