根据现行《室外排水设计规范》,雨水管段最小覆土厚度,在车行道下时,一般不小于()m。
A. 0.3
B. 0.6
C. 0.7
D. 1.0
查看答案
以下哪些选项是雨水管段水力设计步骤()
A. 划分流域与管渠定线,确定雨水流向
B. 划分设计管段与沿线汇水面积
C. 确定雨量参数的设计值
D. 确定管渠的最小埋深
E. 进行水力学计算
Slowing economic growth around the world is the World Bank’s goal of ending by the year .
The United Nations says extreme poverty is a condition in which basic human needs are being or met. These needs include having , food and an education.
影片中色彩运用是在客观基础上的主观创作,可以采用统一色彩、对比色彩、多元色彩和局部色彩等方法进行。
A. 对
B. 错