喉癌的病理类型以鳞癌居多，据比统计约为() ["A．20%～28%","B．40%～48%","C．55%～58%","D．70%～78%","E．90%～98%"]
慢性化脓性骨髓炎的基本X线表现是() ["A．软组织肿胀和(或)窦道形成","B．骨轮廓粗大变形","C．骨质破坏与增生同时存在，并可有死骨","D．病理骨折","E．继发性化脓性关节炎"]
较适合胸、腹部伤口包扎的急救材料是() ["A．纱布","B．四头带","C．绷带","D．三角巾","E．伤员衣裤撕成的布条"]
急性上消化道出血是指发生在下列哪些器官部位的急性出血() ["A．食管","B．胃十二指肠","C．回肠","D．胰腺","E．胆道"]
无菌性骨坏死最常见的部位是() ["A．肱骨头","B．髌骨","C．膝部股骨外髁","D．桡骨小头","E．股骨头"]
关节置换术常见并发症有____________、____________和__________。
