My father told me a story that ________ European woman helped him a lot when he was in America in ________ 1970s.

A．a; the

B．an; /

C．the; the

D．an; the

患者，男，56岁，右侧肩关节疼痛伴活动障碍，进行肩关节屈伸活动度评定。

量角器中心应置于（）

A.肩峰

B.鹰嘴

C.肱骨头

D.肱骨外上髁

E.肩胛冈