老年男性,以脱人口腔肿物就诊。应考虑() ["食管息肉","食管平滑肌瘤","食管下段静脉曲张","食管憩室","食管癌"]
脑性瘫痪是一种()。 ["非进行性中枢性运动障碍","非进行性外周性运动障碍","进行性中枢性运动障碍","进行性外周性运动障碍","缓慢进行性中枢运动障碍"]
使慢性阻塞性疾病和肺癌发病率增加的重要因素是()。 ["青年人吸烟人数增加","细菌及病毒感染","支原体感染","耐药性增加","免疫力低下"]
目前常用的永久栓塞材料有() ["明胶海绵","聚乙烯醇","不锈钢圈","氧化纤维素","无水酒精"]
牙周病预防重点在()。 ["控制致病菌","消除菌斑","牙石的控制","控制唾液菌量","控制菌斑"]
PSV