A 正中关系 B
息止<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230804/12259134_0_1.gif">位 C
正中<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230804/12259134_0_2.gif">位 D
肌位 E
非正中<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230804/12259134_0_3.gif">关系