题目内容
滤波电路的功能是将整流输出的脉动的直流电压中的交流成分滤除，而保留直流量。()
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将电网送来的交流电压转换为稳定的直流电压一般需要变压、整流、滤波和稳压四个环节。（）
Australia is generally divided into the following three topographical regions except __ ___.
In Britain the succession order of the Crown can be altered only by common consent of __ ___.
Today __ ___ is Ireland's most influential daily.
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