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问题 单项选择题 B1型题

可引起动物坐骨神经麻痹，膀胱与直肠括约肌障碍的是（）

A.横断性脊髓炎

B.腰部脊髓发炎

C.弥漫性脊髓炎

D.胸部脊髓发炎

E.颈部脊髓发炎

答案

参考答案：B

选择题

Not until his mother came back_______.

A．he began to do his homework

B．had he began to do his homework

C．he had begun to do his homework

D．did he begin to do his homework
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单项选择题

男，30岁。右手中环指肿胀，疼痛。X线检查显示中、环指近节指骨膨胀性骨吸收，夹杂钙化斑。诊断内生软骨瘤，施行刮除植骨术。术后1年复发，进一步的治疗是（）

A.肿瘤段切除植骨术

B.肿瘤段切除人工关节置换术

C.刮除植骨术

D.截指术

E.放射治疗
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