一旦发生心室颤动应立即给予的处理是（）
A.苯妥英钠
B.利多卡因
C.安装人工心脏起搏器
D.非同步直流电复律术
E.同步直流电复律术
参考答案：D
The family were enjoying their dinner, so I was wondering if I had arrived at a/an ________ time.[ ]
A. awkward
B. prosperous
C. flexible
D. particular
发生泥包卡钻有哪些原因？
