举高喷射消防车下车消防系统由（）组成。
A.水泵系统
B.下车管路
C.上车管路
D.电动消防炮
参考答案：A, B
3567830读作：______．
Do you know _____? [ ]
A. when did he start hiccupping
B. how far from school does she lire
C. which movies will win awards next year
D. whether has the No.15 bus arrived
