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【单选题】
在滤波电路输出电压较高,负载电流较小的应用场合,宜采用哪种滤波电路?( )A.
电容滤波
B.
电感滤波
C.
LC滤波
D.
以上都不是
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举一反三
【单选题】_____ is an isolated and disheartened man suffering from _____.
A.
John, William
B.
Jerry, loneliness
C.
Phillip, Henry
D.
Harry, Peter
【简答题】Commercialization has permeated throughout our life and has turned what was traditionally an interest free relationship into seller-and-buyer or consumer-and-service relationship in many fields includ...
【简答题】The most suitable site for a radio transmitter (发射台) is an isolated place far from cities. (best located) A radio transmitter __________ at an isolated place far from cities.
【多选题】{What are the problems with this chart? }
A.
People are the least skilled at judging angles
B.
By making the pie chart 3D and slightly tilted, the angles are difficult to judge
C.
There are too many slices to the pie
D.
This chart has no problems
【判断题】An independent paragraph is an isolated one which has its own separated existence and it is like a complete essay by itself.
A.
正确
B.
错误
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