第7题: [单项选择]最常见的慢性支气管炎的X线胸片表现是 A. 双肺纹理增粗、紊乱,成网状或条索状 B. 双肺透亮度增加 C. 肺局部透亮度增加 D. 肺蜂窝状改变 参考答案:A 答案解析:[考点] 慢性支气管炎的胸片表现 [分析] 慢性支气管炎反复发作,引起支气管壁增厚,细支气管或肺泡间质炎症细胞浸润或纤维化,X线胸片可见双肺纹理增粗、紊乱,成网状或条索状,以下肺野较明显。双
第20题: [单项选择]A technician needs to manage a switch by using the management port on the back of the switch.Which of the following cables would the technician use?() A. Straight B. Console C. Crossover D. Loopback 参考答案:B