下列属于移动灭火装置的是（）。
A、空气充填泵
B、各种消防梯
C、AB类比例混合器
D、浮艇泵
参考答案：D
—How was your weekend, Jeff?
—I had great ______ watching a football game. [ ]
A. interest
B. time
C. fun
滞产
