For generations the people in these two villages lived in perfect_____ .
A.conflict
B.distinction
C.harmony
D.regulation
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“Hamlet”is one of Shakespeare’s great_____ .
A.tragedies
B.comedies
C.plays
D.tales
低钾血症时，心电图表现为()
A. T波低平,有U波,QRS波增宽
B. T波低平,无U波,QRS波增宽
C. T波低平,有U波,QRS波变窄
D. T波高尖,有U波,QRS波增宽
E. T波高尖,有U波,QRS波变窄
急性低钾血症对心肌生理特征的影响是()
A. 兴奋性↑、传导性↓、自律性↑、收缩性↑
B. 兴奋性↑、传导性↑、自律性↓、收缩性↓
C. 兴奋性↓、传导性↓、自律性↓、收缩性↑
D. 兴奋性↓、传导性↑、自律性↓、收缩性↑
E. 兴奋性↑、传导性↓、自律性↓、收缩性↓
高钾血症是指血清钾浓度低于()
A. 1.5mmol/L
B. 2.5mmol/L
C. 3.5mmol/L
D. 4.5mmol/L
E. 5.5mmol/L
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