—It's too hot. Would you mind ____ the door?

—_____. Please do it now.[ ]

A. to open, OK      

B. opening, Certainly not

C. opening, Of course  

D. to open, Good idea

行前鼻镜检查时，进入鼻前庭不能超过某一部位，以免引起疼痛（）。

A.前庭外侧壁

B.鼻小柱内侧壁

C.鼻阈

D.前庭前壁

E.前庭后壁