应激原按照强度和持续时间分（）；低强度长期应激原；高强度短期应激原；低强度短期应激原。
参考答案：高强度长期应激原
Supposing I _____ your offer, would you feel disappointed? [ ]
A. turn in
B. turn off
C. turn over
D. turn down
死链接
