We actually found it all worth to prepare for the worst condition we might face.

A．to be worth

B．worth our while

C．worthy of

D．worthwhile

通常所说的颞下颌“关节强直”指的不是（）。

A.真性关节强直

B.关节内强直

C.关节内纤维性粘连

D.关节内骨性粘连

E.颌间挛缩