病史:男性,46岁,咳嗽、胸闷、呼吸困难半年。诊断() ["左上肺炎","左上支气管扩张","左上浸润型肺结核","正常胸片","左侧胸腔积液"]
110配线箱规格为500对的高度是()。 ["450mm","650mm","850mm","1050mm"]
再生障碍性贫血引起贫血的最主要原因是() ["造血原料缺乏","无效性红细胞生成","红细胞破坏过多","骨髓造血功能低下","失血"]
软性角膜接触镜用于下列哪一种情况最为适宜() ["高度散光","老视眼","角膜白斑","大泡性角膜炎","无晶状体眼"]
关于Horner综合征,说法错误的是() ["颈副交感神经损伤所致","可出现患侧上睑下垂,睑裂变小","瞳孔缩小","瞳孔对光反应及近反射正常","可出现患侧面颈部无汗"]
分析保安过滤器污堵的原因?