There _____ an exhibition in the museum tomorrow. [ ]

A. is going to be

B. will have

C. is going to have

D. are going to be

市政两路消防供水不符合条件的有（）

A.市政给水厂应至少有两条输水干管向市政给水管网输水

B.市政给水管网应为环状管网

C.市政给水管网应为树状管网

D.应至少有两条不同的市政给水干管上不少于两条引入管向消防给水系统供水