触电伤势严重时的基本急救方法是（）和（）。
参考答案：人工呼吸法；胸外心脏挤压法
许慎
The section of each end of a barge which is heavily reinforced to take the pressure of pushing is called the（）.
A.Headlog
B.Towhead
C.Collision bulkhead
D.Bullnose
