肥厚型心肌病的治疗可考虑
A．安置DDD起搏器B．射频消融术C．狭窄处球囊成形术D．冠脉内旋磨支架术E．心肌打孔血运重建术
参考答案：A
Smoking does great harm to our health. ( ) is smoking allowed in public places.
A．In no time
B．At a time
C．At all times
D．At no time
无线车次号的采集原理是什么。
