---What do you think we should do after dinner?

---Why don't we get ____ beer at the Karaoke bar down the street? It is kind of ____ fun      to drink with old friends．

A．a; 不填

B．a; a

C．the; a

D．a; the

可引起白瞳症的眼病有（）

A.视网膜脱

B.先天性白内障

C.原发性开角型青光眼

D.视网膜动脉阻塞

E.转移性眼内炎