眼眶壁较厚的是() ["A．上壁","B．下壁","C．内侧壁","D．外侧壁","E．中壁"]
构成左心缘第二弓的是()构成心右心缘第二弓的是()构成右心缘第一弓的是() ["A．肺动脉段","B．右心房","C．上腔静脉","D．左心耳","E．左心室"]
周围型肺癌()肺平滑肌瘤()肺错构瘤()肺段隔离症() ["A．左下叶后基底段肿块，上下径较长，增强CT显示主动脉分支供血","B．左上叶孤立性结节，类圆形，无分叶和毛刺，CT增强后明显强化","C．右上叶前段孤立结节，有分叶，细短毛刺，内部有空泡","D．左下叶孤立结节，浅分叶，内有爆米花样钙化","E．右上叶后段结节，边缘光整，CT增强后无强化"]
双极细胞核位于哪一层() ["A．视锥、视杆细胞层","B．外核层","C．神经节细胞层","D．内核层","E．神经纤维层"]
支气管异物可见于()食管自发破裂可见于()右上纵隔积液可见于() ["A．V型征","B．上纵隔液平面影","C．右上纵隔增宽尖角征","D．纵隔压迫征","E．纵隔钟摆运动"]
纵隔气肿可见于()肺气肿可见于()肺下积液可见于()
