--How was________ dinner at Mike's house?

--It was great. Mike's mum is________ wonderful cook.

A．a; the

B．the; a

C．the; the

D．a; an

髁突骨折后影响骨折移位的因素有（）

A.翼内肌的牵引

B.翼外肌的牵引

C.咬肌的牵引

D.颞肌的牵引

E.外力的大小和方向