右肋缘下扪及肿块最常见原因是() ["膈下脓肿","肿大的肝脏","肿大的胆囊","肝曲肿瘤","下垂的右肾"]
空回肠良性肿瘤中以哪些常见() ["腺癌","畸胎瘤","纤维瘤","平滑肌瘤","神经源性肿瘤"]
飞机以一定地速逆风起风时() ["滑跑距离将减小","滑跑距离将增大","滑跑距离将不变"]
飞机平飞遇垂直向上突风作用时() ["阻力将增大","升力将增大","升力将减小"]
食管的生理性狭窄及其压迹部位相同的是哪些() ["左心房部","主动脉弓部","膈食管裂孔部","食管入口部","左主支气管部"]
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