对有呼吸和循环体征而无应答的患者，首先应采取的措施下列哪项正确（）
A.仰卧法
B.俯卧法
C.恢复体位
D.半坐卧位
E.头低足高位
参考答案：C
Misunderstanding is likely to ______ if people fail to communicate with each other. [ ]
A. raise
B. rise
C. arise
D. add up
All of us still remember the terrible tsunami that _____ the areas in the southeast of Asia in 2004.
A．attacked
B．struck
C．knocked
D．beat
