It is the fact _______ Jane doesn’t know Jolin is a popular singer ____ surprises us all.

A．which; which

B．which; that

C．that; that

D．that; which

甲亢病人在甲状腺大部切除术后出现呼吸困难最常见的原因（）。

A.双侧喉上神经外侧支损伤

B.一侧喉返神经损伤

C.甲状腺功能低下致颈前黏液性水肿

D.甲状腺危象

E.伤口内出血或喉头水肿