—They ___________ about Super Voice Girl. Let's join them.

—Good idea.      

A. talk          

B. are talking

C. have talked    

D. talked

具有消肿生肌功效的活血祛瘀药是（）。

A.乳香、没药

B.三棱、莪术

C.煅石膏、牡丹皮

D.白芷、丹参

E.桃仁、红花