一You’ve made great progress in your survey, haven’t you?

——Yes，but some problems among the youngsters still remain——．

A．settled

B．settling

C．to settle

D．to be settled

病例分型以何时的诊断和病情为根据（）

A.入院时

B.住院中发生变化时

C.住院中主治医师同意改变时

D.病理检查证实时

E.出院时