When they get old, some old people go to live in a nursing home with other old people _______

there are nurses to look after them.

A．although

B．that

C．where

D．unless

一位外科手术前的病人，坐卧不安，眉头紧锁，小动作多，这一现象是（）

A.应激的行为反应

B.应激的情绪反应

C.应激的生理反应

D.应激的防御反应

E.以上都不是