Twenty million years ago, Idoho was not the dry place as it is now. ______, it was warm and damp, covered with thick forests.

A．Thus

B．Besides

C．Rather

D．Otherwise

在治疗瘀血病证时，常配以行气、补气药，其理论根据是（）

A.气能生血

B.气能行血

C.气能摄血

D.血能载气

E.血能生气