痛经属气滞血瘀者常取（）。
A.足三里
B.地机
C.关元
D.中极
E.次髎
参考答案：A, B, D, E
--Mike, pay attention to the teachers carefully in class, you'll fall behind.
--I will. I know nothing is difficult if you put your heart into it.
A. listening to
B. listen to
C. listen
（）是美国的土著居民
