大客车驾驶人要向乘客讲解安全门(窗)、安全锤的使用方法。
参考答案:对
强心对甙列哪一些心衰的治疗疗效较差甚至无效?
A.瓣膜病、高血压、先天性心脏病
B.贫血、甲亢、维生素B1缺乏症
C.肺原性心脏病、心肌损伤、活动性心肌炎
D.严重二尖瓣狭窄和缩窄性心包炎
E.窦性节律的轻、中度心衰
_____, there were also no lights in the houses along the street.[ ]
A. There not only were no streetlights
B. Not only there were no streetlights
C. Not only were there no streetlights
D. There were only no streetlights