皮皮学，免费搜题
登录
搜题
【单选题】
某丙类谐振功率放大器工作在临界状态，若保持其它参数不变，将集电极直流电源电压减小，则放大器的工作状态将变为()A.
过压
B.
弱过压
C.
临界
D.
欠压
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】Any lesson we teach naturally divide into different stages of activity and the main stages are: presentation, practice, production, reading, listening and ____.
A.
speaking
B.
writing
C.
comprehension
D.
revision
【简答题】One of the most difficult questions to answer is how much a job is worth. We naturally expect that a doctor’s salary will be higher than a bus conductor’s wage. But the question becomes much more diff...
【简答题】Have you experienced any trial class or beginner course in a fencing club ?
相关题目：
参考解析：
知识点：
题目纠错 0
发布
