单选题 His body temperature has been ______ for 3 days, the highest point reaching 40.5 degrees centigrade.
【正确答案】 C
【答案解析】[解析] abnormal不正常的;uncommon罕见的,稀少的;disordered乱的,错乱的;extraordinary特别的,不平常的,奇特的。句意:三天来他的体温一直不正常,最高时曾达40.5℃。