There will be more than five proposals __________ at the meeting.

A．having been discussed

B．discussing

C．to be discussed

D．discussed

女性患者，42岁，胃镜检查提示慢性萎缩性胃窦炎，伴肠化和轻度不典型增生，首选措施是()

A．定期内镜随访检查

B．预防性手术治疗

C．胃液分析

D．定期X线钡餐检查

E．定期血清癌胚抗原检查