单选题Line losses in a distribution circuit are kept to a minimum by （）.Aadding rubber insulation conductors to the circuitBusing higher current and lower voltage increasing theCnumber of thermal relays in the circuitDusing higher voltage and lower current
单选题
Line losses in a distribution circuit are kept to a minimum by （）.
A
adding rubber insulation conductors to the circuit
B
using higher current and lower voltage increasing the
C
number of thermal relays in the circuit
D
using higher voltage and lower current
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