题型:问答题 论述题 患者男性,25岁,咽炎,注射青霉素后1分钟,呼吸急促,面部发绀,心率130次/分,血压60/40mmHg。青霉素发生过敏反应的机制是()A.青霉素本身诱导机体发生变态反应B.青霉素降解产物诱导机体发生变态反应C.青霉素加速抗原抗体结合D.青霉素促进机体释放组胺、白三烯等致敏原E.青霉素促进肥大细胞脱颗粒 查看答案
题型:问答题 论述题 The dying old man opened his mouth as if ____ something. A.to sayB.sayingC.to have saidD.was saying 查看答案