Which of the following activities is not concerned with developing the project charter ？（）

A．Project justificatio

B．Collecting output of the planning processe

C．Current understanding of the customers nee

D．Documenting the business need

患者，女，25岁，前牙深覆，远中切角缺损，选用较佳治疗方案是（）

A．用3/4冠修复，缺损部分用复合树脂恢复

B．支架式复合树脂修复

C．烤瓷全冠修复

D．瓷贴面修复

E．开面冠修复