恶性骨肿瘤的X线表现主要为() ["边缘不清楚,骨质破坏,骨膜反应明显","边缘清楚,骨质破坏,骨膜反应明显","边缘不清楚,骨质破坏,无骨膜反应","边缘不清楚,骨质增生,无骨膜反应","边缘清楚,骨质增生,无骨膜反应"]
什么是牵引电动机的全悬挂?
对放疗不敏感的肿瘤是() ["霍奇金瘤","精原细胞瘤","软骨肉瘤","乳腺癌","鼻咽癌"]
车轮踏面为什么制成两段斜面?
Maffucci综合征属于() ["骨组织肿瘤","软骨组织肿瘤","纤维组织肿瘤","骨髓组织肿瘤","滑膜组织肿瘤","答案解析与笔记"]
什么是牵引电动机的半悬挂?有何优缺点?