题目内容
反向击穿电压和正向平均电流是选择整流二极管时必须考虑的两个主要参数。
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流过桥式整流电路中每只整流二极管的电流和负载电流相等。
电容滤波电路是在输出端（ ）电容，利用（ ）特点来滤波。
整流电路接入电容滤波器后，输出电压的直流成分( )，交流成分( )。
Listen to a short passage concerning American’s Work Ethic and fill in the missing information.[音频]For four hundred years or more, one thing has been a characteristic of Americans. It is called their “work ethic”. Its 1 were in the teaching of the Christian Puritans who first settled in what is now the northeastern state of Massachusetts. They believed that is was their 2 duty to work as every task to please God by their diligence, honesty, 3_____, skill, and attitude.
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