患者肾虚精关不固，常有遗精，滑精，兼见心悸，失眠多梦。治疗应首选
A．山茱萸B．桑螵蛸C．五味子D．海螵蛸E．百合
参考答案：C
Peter phoned to say they had arrived safely, so put your mind ______.
A．with ease
B．by heart
C．in peace
D．at ease
下列哪项不是吐血的特征（）
A.可夹食物残渣
B.血色紫暗或暗红成块
C.多伴黑便
D.呈泡沫样
E.血随呕吐而出
