患者，男性，35岁，双侧下肢、臀部泛发性紫癜、血疱、水疱，部分皮疹呈暗红色结节样，少数溃疡，附血痂、见少数萎缩性瘢痕。病程中伴发热，自觉皮疹疼痛明显，血常规正常，尿常规提示隐血++、RBC 2～3/HP。
该病发病从免疫学角度分析，属于
A．Ⅰ型变态反应 B．Ⅱ型变态反应
C．Ⅲ型变态反应
D．Ⅳ型变态反应
E．不定型变态反应
参考答案：C
解析： 这是一道临床诊断和治疗应用的综合性题目，根据提供的信息，首先抓住临床表现可以明确诊断。考查变应性皮肤血管炎发病机制、诊断要点及临床特点。
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| It's no secret that many children would be healthier and happier with adoptive parents than with the parents that nature dealt them. That's especially__1__of children who remain in homes where they're badly treated__2__the law blindly favors biological parents. It's also true of children who__3__for years in foster (寄养) homes because of parents who can't or won't care for them but__4__to give up custody (监护) rights. Fourteenyearold Kimberly Mays__5__neither description, but her recent court victory could__6__ help children who do. Kimberly has been the__7__of an angry custody battle between the man who raised her and her biological parents, with whom she has never lived. A Florida judge__8__that the teenager can remain with the only father she's ever known and that her biological parents have "no legal__9__"on her. Shortly after__10__in December 1978, Kimberly Mays and another baby were mistakenly switched and sent home with the__11__parents. Kimberly's biological parents, Ernest and Regina Twigg, received a child who died of a heart disease in 1988. Medical tests__12__that the child wasn't the Twiggs' own daughter, but Kimberly was, thus leading to a custody__13__with Robert Mays. In 1989, the two families__14__that Mr. Mays would maintain custody with the Twiggs getting__15__ rights. Those rights were ended when Mr. Mays decided that Kimberly was being__16__. The decision to__17__Kimberly with Mr. Mays caused heated discussion. But the judge made it clear that Kimberly did have the right to sue (起诉)__18__her own behalf. Thus he made it clear that she was__19__just a personal possession of her parents. Biological parentage does not mean an absolute ownership that cancels(取消) all the__20__of children. | |||
| ( )1.A.terrible ( )2.A.but ( )3.A.settle ( )4.A.have ( )5.A.likes ( )6.A.actually ( )7.A.victim ( )8.A.ruled ( )9.A.expectation ( )10.A.birth ( )11.A.biological ( )12.A.examined ( )13.A.battle ( )14.A.thought ( )15.A.equal ( )16.A.harmed ( )17.A.make ( )18.A.by ( )19.A.more than ( )20.A.freedom | B．sad B．if B．live B．refuse B．gives B．eventually B．object B．believed B．action B．judgment B．own B．explained B．right B．quarreled B．same B．forbidden B．leave B．through B．no more than B．happiness | C．true C．when C．suffer C．stick C．fits C．successfully C．sacrifice C．ordered C．effect C．operation C．kind C．decided C．agreement C．agreed C．visiting C．wounded C．give C．on C．not more than C．rights | D．natural D．because D．gather D．fail D．knows D．abruptly D．teenager D．indicated D．claim D．school D．wrong D．showed D．decision D．prepared D．speaking D．hidden D．keep D．in D．less than D．ideas |