电梯安装的计量单位是( )。
A．部
B．个
C．盒
D．组
参考答案：A
It was from only a few supplies ______ she had bought in the village ______ the hostess cooked such a nice dinner.
A．where; that
B．that; that
C．that; where
D．that; which
某城镇用水由制水厂直接供给，制水厂每日工作时间为7～23时，规模为96000m3/d。城镇用水量变化如图1-5所示，则水厂清水池所需调节容积为（）。
A．14000m3
B．18000m3
C．19000m3
D．19200m3
