张力性气胸不可能出现（）
A.奇脉
B.颈静脉怒张
C.纵隔扑动
D.气管移位
E.皮下气肿
参考答案：C
领导方格论：关心生产、关心人：贫乏型管理、中庸型管理、协作型管理、权威型管理、（）管理
---What were you doing when Tom came to see you?
---I had just put on my overcoat and_____ to visit my friends.
A．left
B．was left
C．was leaving
D．had left
