肺炎病孩出现下列哪种情况时可发生自主呼吸突然停止() ["肺部啰音密集","呼吸困难伴三凹征","肝脏进行性增大","PaCO2>70mmHg","SaO2<85%"]
目前我国期货市场实行()清算制度。 ["T+0","T+2","T+3","T+7"]
人体通过“反射弧”对外界刺激作出反应的方式,称为() ["自我控制","反射","调试","顺应","应对"]
女,18岁,右下颌膨隆畸形2年,无疼痛。如果检查见右下颌骨膨隆,骨性硬度。X线表现为右下颌骨密度均匀增高,呈磨砂玻璃状;右下颌骨外形膨大,骨密度变薄。应诊断为() ["A.牙源性边缘性颌骨骨髓炎","B.骨纤维异常增殖症","C.成骨肉瘤","D.成釉细胞瘤","E.颌骨中央性癌"]
小儿急性上呼吸道感染,最常见的病原体是() ["支原体","肺炎链球菌","溶血链球菌","真菌","呼吸道合胞病毒"]
双胎可发生一个胎儿羊水过少的为孕晚期常伴有羊水过少羊水过多可发生于