室内非埋地明敷主干线据地面高度不得小于()。A:2.5mB:3.5mC:4.5mD:5.5m

作者: rantiku 人气: - 评论: 0

问题室内非埋地明敷主干线据地面高度不得小于()。

选项 A:2.5m B:3.5m C:4.5m D:5.5m

答案 A

解析

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