我国城市燃气管道按输气压力来分，高压A燃气管道的压力为2.5MPa＜P≤()MPa。A:4.0B:3.5C:5.0D:6.0

作者: rantiku 人气: - 评论: 0

问题我国城市燃气管道按输气压力来分，高压A燃气管道的压力为2.5MPa＜P≤()MPa。

选项 A:4.0 B:3.5 C:5.0 D:6.0

答案 A

解析

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