地下燃气管道距铁路路堤坡脚之间的水平净距为()m。 A.3 B.5 C.8 发布时间:2019-02-22 00:24 │ 来源:www.tikuol.com 题型:单项选择题 问题: 地下燃气管道距铁路路堤坡脚之间的水平净距为()m。A.3 B.5 C.8
题型:单项选择题 A.Relocating people from an earthquake-prone province.B.Constructing more posts to predict about earthquakes.C.Economizing on electricity nationally.D.Building a hydropower plant. 查看答案