A.大于100W B.小于100W C.等于100W D.不確定
A.220V B.380V C.127V D.110V
A.電流對(duì)稱(chēng) B.電壓對(duì)稱(chēng) C.電壓、電流對(duì)稱(chēng) D.電壓不對(duì)稱(chēng)