属于手太阴肺经的穴位是（）。
A.列缺
B.合谷
C.公孙
D.天枢
E.外关
参考答案：A
____, the more expensive the camera, the better its quality. [ ]
A. General speaking
B. Speaking general
C. Generally speaking
D. Speaking generally
简述射孔的定义及分类？
