It was the first time in my life that I ______ the wonderful scene. [ ]

A. saw        

B. had seen      

C. have seen      

D. see

呈条形、类圆形或扁块状，表面黑色、灰黑色或棕黑色，体轻，质硬的药材是（）

A.灵芝

B.猪苓

C.海藻

D.茯苓

E.冬虫夏草