问题 单项选择题

男性,20岁。从马上摔下,头后枕部着地,颈部活动受限,下颈椎压痛明显,四肢弛缓性瘫痪,胸骨柄平面以下痛、温觉消失,不能自主排尿。诊断首先考虑()

A.颈椎间盘突出

B.颈椎骨折脱位并颈髓损伤

C.颈部软组织损伤

D.颈椎骨折脱位并臂丛神经及腰骶丛神经损伤

E.胸椎骨折并脊髓损伤

答案

参考答案:B

解析:根据外伤史及四肢瘫的体征易于诊断。

改错题

修改语段中五个画线句子。     

英国科学家近期对山雀的行为进行探索,发现这些田鼠般大小的鸟,②能把为过冬而储蓄的种子牢记在心里,③尽管是5处10处,甚至更多的地方,④它们均能想到这些秘密的仓库。⑤通过对燕雀、金丝雀的研究中,科学家们听到他们每年春天的歌,“曲目”同往年完全不 同,可见,鸟类的大脑有特殊的学习记忆能力。  

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填空题