脊柱骨折脱位引起脊髓损伤,可发生在() ["颈椎","胸椎","下腰椎","骶椎","上腰椎"]
呕血伴黄疸见于()。 ["胃黏膜脱垂症","胆道疾病","幽门撕裂伤","消化性溃疡","慢性胃炎"]
潜伏性病毒感染在发病间歇期() ["不能分离出病毒","可以分离出病毒","间歇分离出病毒","不能分离出病毒也不能测出抗体","可以分离出病毒但不能测出抗体"]
内固定原则正确的是() ["解剖复位","满足生物力学需要的坚强内固定","无创外科操作技术","关节早期无痛主动活动","一期植骨促进骨折愈合"]
在抗病毒感染中,起局部免疫作用的是() ["IgG","IgM","IgA","SIgA","IgE"]
呕吐伴上腹部节律性、周期性痛可见于()。