善于治疗头项强痛的腧穴是（）。
A.列缺
B.曲池
C.合谷
D.商阳
E.尺泽
参考答案：A
There is no in trying to persuade him to change his mind, for he never follows the advice of others.
A．doubt
B．point
C．difficulty
D．wonder
简述卧式硫化罐的基本结构？
