There was 　　　 interview with Yao Ming on CCTV-5 yesterday evening. But it was a pity that I missed　　　    　　　 beginning.

A．an; a

B．an; the

C．a; the

D．the; the

会厌、舌骨会厌韧带和甲状舌骨膜的中间部分构成为：（）

A．声门旁隙

B．会厌前隙

C．喉入口

D．喉前庭

E．Reinke间隙