— Sorry, I couldn’t come to the party. I was sick that day.

— ____.  

A．I don’t know that

B．That’s all right

C．Yes, we’ll have another party

D．No, the party wasn’t held

男性，11岁，外伤导致
1冠折，断面位于龈上2mm，X线示该牙经过完善的根管治疗，根尖孔已闭合，叩（一），松（一），此时做何种处理（）

A.接烤瓷桩核冠修复

B.拔除残根，种植义齿修复

C.塑料全冠修复

D.暂时桩冠修复

E.都不对