肾气亏损型痛经最佳选方是()
A.归肾丸
B.加减一阴煎
C.保阴煎
D.调肝汤
E.右归丸
参考答案:D
______ do their homework carefully. [A]No all the students [B]Not all the students [C]None the students
某催眠药按一级动力学消除,其消除速率常数为0.35/h,设静脉注射后患者入睡时血药浓度为1mg/L,当患者醒转时血药浓度为0.125mg/L,患者大约睡了多久:
A.10h
B.2h
C.4h
D.6h
E.8h