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【单选题】
电子式电能表的乘法器(模拟乘法器和数宇来法器)的功能是为了获得电路中的 。A.
最大功率
B.
瞬时功率
C.
平均功率
D.
无功功率
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【单选题】Distance education is enrollment and study with an educational institution that provides lesson materials prepared in a sequential and logical order for study by students on their own. When each lesso...
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Why is distance education important to the modem society.?
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