—Glad to meet you.

—____________

A．So do I.

B．How are you?

C．How do you do?

D．The same to you.

二、三壁骨袋

A．引导性组织再生术+植骨术
B．改良Widman翻瓣术
C．根向复位瓣术
D．截根术
E．牙龈切除术 下列情况采取的最佳术式是