第3题: [单项选择]骨软骨瘤临床表现为 A. 生长较快,伴明显疼痛 B. 肿块明显,并可见其表面静脉怒张 C. X线检查见骨膜反应 D. 本身可无症状,但压迫周围组织可影响功能 E. 病理检查可见大量有丝分裂细胞 参考答案:D
第4题: [单项选择]Please allow 4 to 6 weeks after receipt of your payment for delivery of the first issue. A. It takes 4 or 6 weeks to receive your payment. B. You may get a magazine a month later. C. You will get a magazine every 4 to 6 weeks. 参考答案:B