－Can you tell me _______ to travel to Dalian?

－About two hours by plane.

A．how much it costs

B．what I should take

C．how long it takes

D．which is the best season

治疗慢惊风阴虚风动证，应首选（）

A.大定风珠 

B.十全大补汤 

C.缓肝理脾汤 

D.固真汤 

E.逐寒荡惊汤