选择题:A.ab段:DN50mm,通气立管(T):DN100mm,ef段:DN150mm,坡度:i=0.015 B.ab段:DN75mm,通气立管(T):DN100mm,ef段:DN150mm,坡度:i=0.020 C.ab段:DN75mm,通气立管(T):DN75mm,ef段:DN150mm,坡度:i=0.020 D.ab段:DN75mm,通气立管(T):DN100mm,ef段:DN150mm,坡度:i=0.015

  • 题目分类:公用设备师
  • 题目类型:选择题
  • 号外号外:注册会员即送体验阅读点!
题目内容:

A.ab段:DN50mm,通气立管(T):DN100mm,ef段:DN150mm,坡度:i=0.015
B.ab段:DN75mm,通气立管(T):DN100mm,ef段:DN150mm,坡度:i=0.020
C.ab段:DN75mm,通气立管(T):DN75mm,ef段:DN150mm,坡度:i=0.020
D.ab段:DN75mm,通气立管(T):DN100mm,ef段:DN150mm,坡度:i=0.015
参考答案:
答案解析: