心绞痛疼痛发作时典型心电图表现是() ["A.ST段弓背抬高","B.ST段压低,T波低平或倒置","C.T波高尖","D.PR间期延长","E.出现宽大畸形的病理性Q波"]
动脉导管未闭() ["Graham-Steel杂音","Austin-Flint杂音","胸骨左缘3~4肋间收缩期喷射性杂音","心尖区收缩中期喀喇音","胸骨左缘第2肋间Gibson杂音"]
患者男,7岁。查体见发绀伴杵状指。该患者的诊断可能是() ["气胸","休克","肺炎","先天性心脏病","胸腔积液"]
目前流行的人员素质理论包括()。(2012年11月二级真题) ["冰山模型","洋葱模型","大海模型","大树模型","橘子模型"]
二尖瓣狭窄可触及() ["胸骨右缘第2肋间收缩期震颤","胸骨左缘第2肋间收缩期震颤","胸骨左缘3~4肋间收缩期震颤","胸骨左缘第2肋间连续性震颤","心尖部舒张期震颤"]
论述采购合同的主要条款。