根据建设部发布的行业标准《城市供水管网漏损控制及评定标准》规定,对DN≥75的管道, 发布时间:2017-09-20 01:42 │ 来源:www.tikuol.com 题型:单项选择题 问题: 根据建设部发布的行业标准《城市供水管网漏损控制及评定标准》规定,对DN≥75的管道,每年应安排不小于管道总长的()进行改造。A.1%B.1.5%C.2%D.3%
题型:单项选择题 Nowadays students go to key universities just for a formal , which may help them hunt for a suitable job in the future.[ ]A. conservation B. preparation C. graduation D. qualification 查看答案