主动脉瓣关闭不全（）
A.水冲脉
B.重搏脉
C.交替脉
D.奇脉
E.脱落脉
参考答案：A
Having a cell phone makes us feel safer,since we can call for help an emergency. [ ]
A. in terms of
B. in eonsequence of
C. in case of
D. in place of
狂病的主要特征为
A．情绪低落B．情绪高涨或易激惹C．精神失常疾病D．痴呆智能低下E．性格行为异常
