治疗ARDS方法中,肯定有效作用的包括() ["俯卧位","糖皮质激素","先抢救ARDS,暂缓治疗原发病","最好用肠外营养","PEEP"]
造成工艺联锁误动作的最为常见的原因是() ["A.PLC系统故障","B.参与联锁设备掉电","C.因干扰等因素产生的现场仪表变送器误信号","D.控制回路继电器故障"]
下列哪项不是嗜碱粒细胞的颗粒内容物() ["血小板活化因子","组胺","慢反应物质","组胺酶","肝素"]
良好的盆栽土壤应是() ["A、疏松、通气","B、水分渗透性好","C、具良好的保肥保水性能","D、有足够的养分","E、有适应栽培花卉生态要求的酸碱度"]
患者,女性,因“发热3天”来诊。3天前患者开始出现发热,最高39.4℃,热前无畏寒、寒战,伴耳后和颈部疼痛,少许怕热、出汗增多,偶有心悸,无吞咽困难、咳嗽、咯痰、气促、呼吸困难。下列哪一种(或哪几种)药物可以用于治疗亚急性甲状腺炎()。 ["A.阿司匹林","吲哆美辛","泼尼松","甲基泼尼松","氢化可的松","他巴唑","地巴唑","丙基硫氧嘧啶"]
试述人字型复轨器作用?