补泻手法中开阖泻法是：
A．四缝B．中脘C．三阴交D．足三里E．百虫窝
参考答案：B
简述皮瓣应用的适应证。
our textbook ,the English spoken in England in the past is very different from ____ spoken at present.
A．Based on; that
B．Bases on; that
C．Base on; one
D．Based on; it
