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。（）
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Australia is generally divided into the following three topographical regions except __ ___.
A. the Great Western Plateau
B. the Outback
C. the Eastern Highlands
D. the Central Eastern Lowlands
In Britain the succession order of the Crown can be altered only by common consent of __ ___.
A. all members of the royal family
B. the House of Lords and the House of Commons
C. cabinet and ministry
D. the countries of the Commonwealth
Today __ ___ is Ireland's most influential daily.
A. the Irish Press
B. the Irish Independence
C. the Irish Times
D. the Irish Daily
中国古代城市的建设的风格的形成主要是以当地的工匠的文化的尺度和水准决定的。
A. 对
B. 错
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