How much does the train ticket         from Harbin to Beijing?     [ ]

A. cost      

B. spend      

C. pay      

D. afford

《临证指南医案》指出“内风”的机理属于

A．体内气机的逆乱
B．体内阴血自不足
C．体内阳气之变动
D．诸风掉眩，皆属于肝
E．体内筋脉的失养