--- Hurry up! We have to get going.

--- Just a minute. I ________the paper.

A．finish

B．finished

C．have finished

D．am finishing

面部痛觉障碍在鼻尖及口周围最明显，外周稍差，其病变在（）

A.三叉神经第二支

B.面神经

C.脑桥

D.丘脑

E.三叉神经第三支