N₂O的禁忌证有（）。

A.贫血病人

B.支气管哮喘

C.嗜铬细胞瘤

D.休克病人

E.肠梗阻

—This is _____ film I've told you about several times.

—That's great. I've never seen _____ more moving one.[ ]

A. a ; a    

B. the ; the    

C. the; a    

D. a ; the