—Where does he come from?

—I know nothing about him except that he is a doctor      occupation.

A．in

B．by

C．through

D．for

下列组合，错误的是

A．尺骨——大粗隆

B．颞骨——乳突

C．肩胛骨——喙状突

D．胸骨——剑突

E．腰椎——棘突