肺通气的弹性阻力是指() ["气道阻力","惯性阻力","组织的黏滞阻力","肺的回缩力","肺和胸廓的弹性阻力"]
引起慢性胃炎的主要致病因素是() ["粗糙或刺激性物理性因素","药物等化学性因素","十二指肠液返流","幽门螺杆菌感染","机体自身免疫因素"]
椎基底动脉供血不全不应出现() ["眩晕","交叉性瘫痪","吞咽障碍","眼肌麻痹","失语"]
下列药物中可以发生重氮化-偶合反应的是() ["盐酸利多卡因","盐酸普鲁卡因","盐酸丁卡因","盐酸布比卡因","盐酸氯胺酮"]
12个月婴儿,体重5kg,生后牛奶喂养,4个月来因迁延性腹泻改用米糊喂养。近1周来发热、咳嗽、气促。体检:发育营养差,呼吸55次/分,神萎,反应低下,面色苍白,全身皮下脂肪消失,咽充血,两肺细小水泡音。血常规:红细胞2.5×10/L,血红蛋白50g/L,其可能的诊断是() ["轻度营养不良+支气管肺炎+营养性贫血","中度营养不良+支气管肺炎+营养性贫血","重度营养不良+支气管肺炎+营养性贫血","中度营养不良+支气管肺炎+营养性贫血+重度脱水","重度营养不良+支气管肺炎+营养性贫血+重度脱水"]
心前区异常搏动常见于哪些情况?