全身性瘙痒应与下列哪些疾病鉴别()
A.湿疹
B.疥疮
C.痒疹
D.阴囊神经性皮炎
E.以上都是
参考答案:B, C
From the symptoms shown in the dead body, he ________to death by a certain poisonous chemical,
but I can't tell exactly which. [ ]
A. must have been poisoned
B. should have been poisoned
C. could have been poisoned
D. may have been poisoned
下列关于Ⅱ型变态反应的描述正确的有()
A.常见Ⅱ型变态性疾病有输血反应、新生儿溶血疾病
B.又称细胞溶解型变态反应,主要抗体为lgG和IgM
C.由机体组织细胞上的抗原与相应抗体发生免疫反应
D.发生机制有三方面,即激活补体导致细胞溶解,吞噬细胞作用及抗体依赖的细胞介导的细胞毒性作用
E.组胺释放在早期阶段起重要作用