以下四组220V单相供电系统电压偏差值( )在允许偏差范围内.A. +5%, -

admin2022-08-02  21

问题 以下四组220V单相供电系统电压偏差值( )在允许偏差范围内.A. +5%, -8% C.-10%, -7%;B.+8%, -5%; D. +10%,-6%.

选项 A. +5%, -8% C.-10%, -7%;
B.+8%, -5%; D. +10%,-6%.

答案 AC

解析
转载请注明原文地址:https://tihaiku.com/jzgc/275412.html

最新回复(0)