当按规范可采用自然排烟方式时,防烟楼梯间前室或合用前室利用敞开的阳台自然排烟,该楼梯间可不设其他防烟设施。
参考答案:对
—Did you let the secret out to Peter?
—Yes, but _________ it.[ ]
A. I'd rather not do
B. I'd better not do
C. I'd rather not have done
D. I'd better have not done
急性心肌梗死患者,抢救过程中突发意识丧失、抽搐,最大的可能是()
A.心房颤动
B.室性心动过速
C.室性期前收缩
D.心房扑动
E.心室颤动