肺部蜂窝状改变多见于() ["A．肺水肿","B．支原体肺炎","C．类风湿肺","D．淋巴瘤","E．癌性淋巴管扩散"]
儿童后囟正常应于出生后____内闭合，前囟在____内闭合。
以下药物的作用机制是 ["氨茶碱()溴化异丙托品()沙丁胺醇()A．兴奋β受体","B．阻断M受体","C．阻断H受体","D．抗组胺","E．抑制磷酸二酯酶"]
有关肺隔离症描述，不恰当的是() ["A．多见于下叶后基底段","B．有肺动脉供血","C．分叶内、叶外型","D．左侧多见","E．叶内型本身无胸膜包裹"]
女，46岁，右侧搏动性耳鸣一年，耳镜检查透过鼓膜后下部见半圆型紫红色肿物，请结合影像，选择最可能的诊断() ["A．中耳癌","B．胆脂瘤","C．肉芽肿","D．血管瘤","E．颈静脉球瘤"]
儿童长骨骨折的特殊类型是____和____。
