o make members of a team perform better, the trainer first of all has to know their ______________ and weaknesses.

A．benefits

B．strengths

C．techniques

D．values

高层建筑的消防控制室、消防水泵房、防排烟机房的（）和消防电梯等供电，应在最末一级配电箱处设置自动切换装置。

A．自备发电机房 

B．配电室 

C．消防用电设备 

D．消防应急照明