龟尾
参考答案：小儿特定穴，在尾椎骨端，有通调督脉之经气，调理大肠的功能。
Many people consider it _________, from which a lot of children benefit.
A．a worth doing cause
B．a cause worth to do
C．a worthwhile cause
D．a worthless cause
无尿是指成人24小时尿量少于
A．400ml
B．100ml
C．50ml
D．200ml
E．10ml
