硬膜外间隙负压最明显的是() ["A．颈段","B．上胸段","C．下胸段","D．腰段","E．骶段"]
青春期在__________的作用下体格生长加速，出现第二性征。
硬膜外麻醉术中突然出现心率减慢，与哪项相对无关() ["A．麻醉平面过高","B．牵拉反应","C．全脊髓麻醉","D．低血压，缺氧","E．误吸"]
小儿出生后1周可有___________，减少原体重的3～9%。常于出生后_________日恢复到出生前体重。
脊麻平面达T，平均动脉压下降可达() ["A．21%","B．30%","C．44%","D．56%","E．65%"]
胸痹的诊断依据是()肝气郁结的诊断依据是()
