The temperature of the world in the past ten years has dropped a little ()
A. because wind and rain changed the weather
B. , which would have effects on wind and rain
C. because wind and rain did not change the weather
D. , which would not have effects on wind and rain
CV穿刺后突然发绀，脉压低，奇脉、心音遥远
A. 气胸
B. 心脏压塞
C. 血胸
D. 空气栓塞
E. 血肿
58()
A. When is it taking place
B. Yes, I can make it
C. I have some input I’d like to make
D. Is that OK
E. Yes, he’ll be here
F. I won’t be able to attend
G. No, he’s flying to San Francisco
He’s got keen insights
关于急性左心衰的发病机制 阵发性室上性心动过速
A. 左室充盈障碍
B. 左室后负荷突然增加
C. 左室舒张期过短
D. 左室排血量急剧下降
E. 左室前负荷突然增加
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