题目: He______to Disneyland in Los Angeles.[ ]A. have not been B. has not beenC. have not gone D. has not gone 答案: 答案:B
题型:单项选择题 男,70岁,10个月前因股骨颈骨折,行三刃钉固定术,髋关节活动仍有疼痛,X线片示股骨头密度增高,纹理不清,应考虑为A.老年退行性关节炎B.化脓性关节炎C.创伤性关节炎D.髋关节骨性关节炎E.关节结核 查看答案