Robin makes______great effort to learn Japanese and he has made_____progress in it.

A．a;a

B．/;a

C．the;/

D．a;/

下列属于希氏面容的外观改变的是（）

A.面肌消瘦

B.眉头紧锁

C.脸呈铅灰色

D.眼眶凹陷

E.下颌下垂