医德规范（）

A.是医德实践中医德关系的客观反映

B.是医德评价的最高标准

C.是医德体系的主体结构

D.是指导医务人员医德行为的准则

E.是医德教育和医德修养的具体内容

She _____ live alone. But she _____ living alone because she felt lonely. [ ]

A. used to; didn't used to

B. was used to; was not used to

C. used to; was not used to

D. was used to; didn't used to