需应用谷氨酰胺的是（）
A.肝性脑病
B.肾功能不全
C.肺功能不全
D.心功能不全
E.保护肠屏障
参考答案：E
________with his parents that he is able to tell who they are from their steps. [ ]
A. So familiar her is
B. So familiar is he
C. So he is familiar
D. So is he familiar
处于同一社会阶层的人其相互影响
A．比较小
B．比较大
C．趋于稳定
D．难于确定
