帕金森病常见下列哪种步态() ["剪刀样步态","慌张步态","醉酒步态","跨阈步态","摇摆步态"]
大叶性肺炎不会发生的并发症是() ["脓气胸","胸膜炎","败血症","肺褐色硬化","脓毒败血症"]
判定支气管哮喘的治疗效果,最有意义的指标是() ["症状和体征","X线肺透亮的变化","最大呼吸流速—容量曲线","血气分析","肺活量和一秒率"]
体循环终于() ["左心房","右心室","左心室","右心房","全身各部毛细血管"]
导致肺气肿最常见的原因是() ["空气污染","重度吸烟","慢性阻塞性细支气管炎","支气管哮喘","肺尘埃沉着病(尘肺)"]
试述宣威肺癌高发的主要原因。