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单选题
如需变更维修方案，须经设计部门批准。
A
If the repair scheme must be changed, the approval of the design authority is hardly got.
B
If the design authority need change the repair scheme, it can get the approval.
C
If it is necessary to change the repair scheme, get the approval of the design authority.
答案解析
正确答案：C
相关知识点：
变更维修案，需设计批准
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