--- You often talk with your classmate on the telephone or mobile phone?

--- _____． I like using QQ．

A．None

B．Either

C．Any

D．Neither

颞下颌关节紊乱病关节间隙改变最常见的X线表现是

A．前间隙变窄，后间隙增宽，髁状突位置前移

B．前间隙增宽，后间隙变窄，髁状突位置后移

C．整个关节间隙变窄，髁状突位置上移

D．整个关节间隙增宽，髁状突位置下移

E．以上均为常见表现