—How often do you go home to see your parents?

—___________, but usually once a week.

A．As usual

B．No idea

C．It all depends

D．It depends on you

患者，男性，68岁，肝性脑病昏迷2个月，近期发现其骶尾部呈紫红色，皮下有硬结和水疱，病人的压疮处于（）

A.淤血红润期

B.炎性红润期

C.炎性浸润期

D.淤血浸润期

E.坏死溃疡期