流行性腮腺炎的病原是属于() ["A．呼吸道病毒","B．虫媒病毒类","C．肠道病毒类","D．疱疹病毒类","E．痘类病毒类"] 关于食管癌的基本X线征象的说法，错误的是() ["A．粘膜皱襞紊乱、破坏","B．不规则腔内充盈缺损","C．管壁僵直，蠕动消失","D．纵隔内软组织肿块","E．恶性溃疡龛影"] 流行性腮腺炎的主要传染源是() ["A．带病毒的动物或家畜","B．隐性感染者","C．重症病人","D．轻症病人","E．慢性或迁延型病人"] 中枢神经损伤()神经失用()三叉神经痛()轴突断裂() ["A．神经纤维轻度损伤","B．神经轴突严重破坏","C．神经纤维断裂","D．肌张力增高","E．神经实质无明显变化，传导功能异常"] “花环征”是哪种疾病的造影特征() ["A．胆囊结核","B．胆囊腺肌增生症","C．胆石症","D．急性胆囊炎","E．胆囊癌"] 下述哪种病变，腹部平片价值最低()