应激
参考答案：
应激是出乎意料的紧迫情况所引起的急速而高度紧张的情绪状态。
— Mum, today is Friday. Must I finish my homework now?
— No, you _____. You may have a rest first and finish it tomorrow. [ ]
A. mustn't
B. can't
C. may not
D. needn't
地位就是在组织层级上组织成员所占的相对位置，即在正式组织结构中的职位
