超载试验时，施工升降机吊笼内均匀布置额定载荷的（）载荷
A．110%
B．125%
C．130%
D．150%
参考答案：B
A few people were killed in the fire, but _____ were saved.
A．the most
B．most of them
C．most of whom
D．most
对供热式汽轮发电机组的蒸汽既发电又供热的常规热电联产系统，单机容量在 50GMW以下的热电机组，其热电比年平均应大于( )才能立项。
A．50% B．100% C．5% D．80%
