常用电气设备的环境条件中包括下列选项中的( )。
A.冰雪
B.温度
C.风速
D.泥石流
参考答案:A,B,C
解析:[知识点] 电气设备选择的环境条件
--- Can we get the computer before Wednesday?
--- _______. If it is within 30 kilometers, we can make it, but if further away, it will be on Thursday.[ ]
A. I don’t know for sure
B. Well, that all depends
C. It’s up to you, sir
D. There’s no rush
药物溶栓后提示冠状动脉再通的心电图表现是()
A.出现加速性室性自主心律
B.24小时内ST段抬高的导联出现T波倒置>0.1mV
C.急性前间壁梗死溶栓后V导联未出现Q波
D.溶栓2小时内ST段回落≥50%
E.以上都是