【单选题】当加在硅二极管两端的正向电压从 0 开始增加时,硅二极管( )。
【单选题】当加在硅二极管两端的正向电压从 0 开始增加时,硅二极管( )。
【简答题】如果商店是一本书,( )则是这本书的封面。
【简答题】Suppose this is your schedule for the coming three days. Write a paragraph of about 100 words based on the information given in the schedule. You may start the passage with the sentence: I've got a ve...