—What do you need to say?

—No person         smoke or carry a lighted cigarette in this special room.

A．will

B．shall

C．ought

D．need

不属于继发性甲状腺功能减退症病因的是（）

A.产后垂体缺血性坏死

B.甲状腺癌

C.垂体手术

D.放疗

E.垂体瘤