燃气管道穿越高速公路时,应采用()措施。A:提高绝缘防腐等级B:直埋填土加细砂C:铺盖沙土D:加套管E:采用加厚的无缝钢管

作者: rantiku 人气: - 评论: 0
问题 燃气管道穿越高速公路时,应采用()措施。
选项 A:提高绝缘防腐等级 B:直埋填土加细砂 C:铺盖沙土 D:加套管 E:采用加厚的无缝钢管
答案 AD
解析

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