煤层注水单孔所需的注水量？
成釉细胞瘤穿刺检查可抽出 ["A．黄褐色液体","B．白色液体","C．油脂样液体","D．蛋清样液体"]
下列囊肿x线检查有沿下颌骨长轴向生长特点的是 ["A．甲状舌管囊肿","B．根尖周囊肿","C．角化囊肿","D．非牙源性囊肿"]
下列病变不宜切取活检的是 ["A．牙龈瘤","B．血管瘤","C．唇癌","D．颊癌"]
肿瘤切取活检，最好在 ["A．肿瘤中央区","B．肿瘤破溃区","C．肿瘤边缘1．0cm处","D．肿瘤边缘与正常组织交界处"]
何谓路基工作区？
