I had ______ feeling of happiness when I heard that he had made ______ great progress.

A．a; a

B．the; a

C．the; 不填

D．a; 不填

清胃散中体现"火郁发之"之意的药物为（）

A.升麻

B.丹皮

C.黄连

D.当归

E.生地