蛛网膜下腔出血和脑出血主要鉴别是() ["脑脊液有无血液","有无神志不清","有无脑膜刺激征","有无高血压病史","有无神经系统定位体征"]
败血症常见的病原体是() ["支原体","病毒","细菌","真菌","螺旋体"]
给肌松药后骨骼肌的松弛有一定规律,下列哪项描述正确() ["眼轮匝肌肉-膈肌-肋间肌-四肢肌肉","眼轮匝肌肉-四肢肌肉-膈肌-肋间肌","眼轮匝肌肉-肋间肌-四肢肌肉-膈肌","眼轮匝肌肉-上肢肌肉-肋间肌-膈肌","眼轮匝肌肉-肋间肌-膈肌-四肢肌肉"]
肾上腺素受体激动药平喘作用的特点() ["兴奋支气管平滑肌β受体","激活腺苷酸环化酶,使cAMP增加","抑制肥大细胞释放过敏物质","抑制过敏性炎症反应","预防过敏性哮喘发作"]
在暴发型流脑休克型的治疗中,经充分扩容、纠酸治疗无效时,血管活性药物可首选() ["多巴胺","阿拉明","645-2","苄胺唑啉","异丙基肾上腺素"]
钢液凝固过程中夹杂物的行为如何?