A patient who is admitted for treatment of an eating disorder displays controlling behaviors, takes responsibility for others’ actions, and has difficulty identifying feelings. These manifestations suggest

A. dependency.
B. manipulation.
C. learned helplessness.
D. codependency.

脐带先露或脱垂引起胎儿缺氧，以下哪种胎先露最严重（）

A.足先露

B.单臀先露

C.肩先露

D.头先露

E.全臀先露