骨质软化症的原因是() ["A．甲状旁腺功能减退","B．维生素D缺乏","C．磷酸盐缺乏","D．高磷血症","E．低钙血症"]
引起骨质疏松常见原因是() ["A．生长期骨形成缺陷","B．增加骨吸收的其他病理生理过程","C．成骨细胞生长活跃","D．低钙血症","E．成骨细胞骨形成受损"]
骨性碱性磷酸酶测定方法是() ["A．热失活法","B．荧光分光光度法","C．电泳法","D．色谱法","E．麦胚凝集素法"]
论述恶性肿瘤的细胞特征?
论述舌鳞状细胞癌的特点?
如何鉴别肉瘤和癌?
