习近平总书记提出党员干部要做到“三严三实”, “三实”是指()。
主动脉瓣狭窄,可出现的是() ["心尖部舒张期震颤","胸骨左缘第2肋间收缩期震颤","胸骨左缘第3、4肋间收缩期震颤","胸骨右缘第2肋间收缩期震颤","胸骨左缘第2肋间连续性震颤"]
后遗效应属于() ["A型药品不良反应","B型药品不良反应","C型药品不良反应","新的药品不良反应"]
胸部叩诊呈实音的是() ["肺气肿","大量胸腔积液","气胸","支气管肺炎","肺空洞"]
患者,男,50岁。后牙固定桥修复时,缺牙区牙槽嵴丰满,圆而光滑,桥体龈端最好选用() ["圆球式","圆锥式","鞍式","悬空","改良鞍式"]
铁路信号几类?