分布区域缩小、资源处于衰竭状态的重要野生药材物种是
A．医疗机构制剂室B．药品生产企业C．药品批发企业D．药品零售企业E．各级医疗机构
参考答案：D
-- The math problem _________ is not difficult.
--- But after several tries , I have to give up _________ on it .
A．it’s , working
B．itself , to work
C．itself , working
D．its , to work
黄土汤用于治疗（）
A.湿热便血
B.热盛吐血
C.热盛衄血
D.虚寒吐血
E.虚寒便血
