我国国家电压等级标准是()。A. 3,6,10,35,(63),110,220,330,500,750kV; B. 3.45,6.9,11.5,40.25,(7

admin2020-12-24  31

问题 我国国家电压等级标准是()。

选项 A. 3,6,10,35,(63),110,220,330,500,750kV;
B. 3.45,6.9,11.5,40.25,(72.45),126.5,253,363,550,825kV;
C.3.15,6.3,10.5,37,(66),115,230,345,525,787.5kV;
D.2.85,5.7,9.5,33.25,(60),104.5,209,313.5,475,712.5kV。

答案A

解析
转载请注明原文地址:https://ti.zuoweng.com/ti/NVn0KKKQ
相关试题推荐