食管贲门失弛缓症与食管下端癌的鉴别要点是() ["A．狭窄上方食管明显扩张","B．食管蠕动减弱或消失","C．狭窄段粘膜完整，管壁柔软","D．钡剂通过缓慢","E．扩张食管内出现液平"]
类风湿性关节炎病变始于()成人股骨头无菌坏死病变始于() ["A．滑膜","B．肌肉及肌腱","C．软骨","D．骨","E．关节囊"]
下列哪项不是食管贲门失弛缓症的征象() ["A．狭窄段管壁僵硬","B．食管内有液平面现象","C．蠕动减弱或消失","D．钡剂通过缓慢","E．食管下段狭窄，上方扩张明显"]
椎体钩外侧有()椎间孔前内侧壁为()椎间孔后外侧壁为() ["A．椎体钩","B．椎间关节","C．棘突","D．椎动脉、椎静脉及交感神经丛","E．横突后结节"]
腹部平片检查最常用于诊断() ["A．胃癌","B．肠梗阻","C．胃溃疡","D．结肠癌","E．食管癌"]
骨瘤()内生软骨瘤()
