飞经走气四法可用于（）
A.等待经气而至
B.催促经气速至针下
C.使气循经而行，乃至达到病所
D.调整经络气血
E.针下得气之后使气留守勿去
参考答案：C
In a sports team each player has a clear role, and there are few __________ when members are
uncertain of their roles. [ ]
A. occasions
B. positions
C. chances
D. situations
下列脏腑哪项属奇恒之腑()
A．心、肺
B．肝、肾
C．膀胱、三焦
D．脑、髓
E．大肠、小肠
