电动开门器的手动控制按钮应设置在防火门内侧墙面上,距门不宜超过()m,底边距地面高度宜为O.9m-1.3m。
A、0.5
B、0.8
C、1
D、1.2
参考答案:A
Xiao Li is the fight person to show the foreigners around, for ______ of us can speak English. [ ]
A. all
B. each
C. both
D. none
商务用餐与圆桌会议的座次安排:()
A.一致
B.有时一致
C.不一致
D.不时不一致