问题
判断题
阻容耦合放大电路的耦合电容、旁路电容越多,引入负反馈后,越容易产生低频振荡。
答案
参考答案:对
阻容耦合放大电路的耦合电容、旁路电容越多,引入负反馈后,越容易产生低频振荡。
参考答案:对
任务型阅读(共5小题;每小题1 分,满分5 分) “低碳生活,从我做起!”请仔细阅读下列材料,找出以下五种“低碳”行为产生的直接效应。
小题1:Henry often recycles water to clean his room and water the flowers. 小题2:Daphne always turns off the lights and the computer as soon as she leaves her office. 小题3: Mr. White sometimes goes to work by bus or on foot instead of driving his car. 小题4: Li Lei usually uses QQ or e-mail to communicate with his friends instead of paper letters. 小题5:Miss Zhang never wears fur(皮草)clothes and she decides to eat less meat. |