[名词解释] 剪刀样步态

神经系统发育异常性疾病 颅底凹陷症 Communicatinghydrocephalus 显性脊柱裂()隐性脊柱裂() ["A．椎骨缺损","B．椎管内容物膨出","C．两者均有","D．两者均无"] 隐性颅裂()显性颅裂() ["A．颅骨缺损","B．颅腔内容物膨出","C．两者均有","D．两者均无"] 剪刀样步态