As ___ matter of fact, it was her attitude towards ____life that moved us most.

A．a; the

B．a; /

C．/ ; /

D．the; /

下列哪点不是上下颁前磨牙的区别（）

A．上颌前磨牙牙冠颊舌径与近远中径约相等

B．下颌牙冠方圆

C．上颌牙冠较直

D．上颌牙冠较下颌大

E．下颌的牙冠向舌侧倾斜