题目内容 (请给出正确答案)
提问人:网友c********1 发布时间:2023年8月5日 09:57
[单项选择题]

机发电机组使用()年以上可以更新。

A.5年

B.10年

C.15年

D.不确定

参考答案
十点题库官方参考答案 (由十点题库聘请的专业题库老师提供的解答)
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