可引起COPD急性加重的因素有()
A．吸烟
B．冷空气刺激
C．细菌感染
D．病毒感染
E．衣原体感染
参考答案：B, C, D, E
— I'm sorry I broke your mirror.
— Oh, really? ______. [ ]
A. You're welcome
B. Don't be sorry
C. Not at all
D. It doesn't matter
心脏压塞的典型体征是
A．动脉压下降，颈静脉怒张和心音低钝
B．动脉压下降，奇脉和心音低钝
C．动脉压上升，颈静脉怒张和心音低钝
D．动脉压上升，奇脉和心音低钝
E．奇脉、颈静脉怒张和双下肢水肿
