听神经瘤的病理特征包括() ["最常见的原发部位是内听道段前庭神经的神经膜细胞(Schwann细胞)","约2/3来自前庭上神经","1/3来自前庭下神经","起源于耳蜗神经和面神经者罕见","以上均正确"]
初治肺结核病例,病变有明显活动性,下列治疗方案中最好的是:() ["卡那霉素+链霉素","异烟肼+利福平+链霉素+吡嗪酰胺","异烟肼+乙硫异烟胺","但用异烟肼","异烟肼+乙胺丁醇"]
肩蜂前下方当肩蜂与肱骨大结节之间的腧穴是() ["肩骸","肩髃","肩贞","天宗","曲垣"]
起源于脉管组织的恶性肿瘤(相对恶性)为() ["血管瘤","血管球瘤","血管内皮瘤","淋巴管瘤","血管瘤病"]
有关可用性和可信性的说法正确的是() ["可靠性从延长其正常工作时间来提高产品可用性","维修性是从缩短因维修的停机时间来提高可用性","可信性不仅仅用于非定量条款中的一般描述","可信性的定性和定量具体要求是通过可用性、可靠性、维修性及维修保障的定性和定量要求表述的","可用性是产品可靠性,维修性和维修保障的综合反映"]
尿路结石的概念