题目: By the time he was 38, he had become ________ principal of ________ university.A./; anB./; aC.a; anD.a; the 答案: 答案:B
题型:单项选择题 男,25岁,主因右膝关节肿痛2周就诊,腰痛3年,查体,右膝关节肿胀,有压痛,浮膑实验阳性,左侧“4字征阳性,左侧骶髂关节压痛阳性,检查类风湿因子抗“0”均阴性,血沉28/小时,HLA-B27阳性,骶髂关节X线片提示:左侧间隙狭窄,边缘不整,可见骨破坏,最可能诊断是:A.类风湿关节炎B.骨关节炎C.风湿性多肌炎?D.化脓性关节炎E.强直性脊柱炎 查看答案