A.P1~P2管段:DN100mm,i=0.012 B.P3~P4管段:DN1

admin2022-08-02  20

问题 A.P1~P2管段:DN100mm,i=0.012B.P3~P4管段:DN150mm,i=0.007C.P6~P7管段:DN300mm,i=0.003D.P7~P8管段:DN300mm,i=0.003

选项 A.P1~P2管段:DN100mm,i=0.012
B.P3~P4管段:DN150mm,i=0.007
C.P6~P7管段:DN300mm,i=0.003
D.P7~P8管段:DN300mm,i=0.003

答案 AC

解析
转载请注明原文地址:https://tihaiku.com/jzgc/2466802.html

最新回复(0)