鼻腔的原发恶性肿瘤中,发病率最高的组织学类型为() ["A.鳞癌","B.腺癌","C.未分化癌","D.淋巴上皮癌","E.肉瘤"]
睡眠障碍(sleepdisorders)
物质滥用(substanceabuse)
鼻窦黏液囊肿的发病机制为() ["A.鼻窦的自然开口长期阻塞","B.窦壁粘膜下腺体轻度炎症或变态反应","C.乳牙根管感染","D.龋齿使牙髓慢性感染坏死","E.窦壁粘膜下变态反应"]
情绪抑郁如果每星期发生_____次,每次持续至少____小时或更多者被认为是持续性抑郁。
饮食障碍(eatingdisorders)