WhichofthefollowingisSTPBESTidentifiedbyunderthecablesheath?()A.NumberoftwistsinwiresB.NumberofwiresC.LubricantD.Foil
题目
WhichofthefollowingisSTPBESTidentifiedbyunderthecablesheath?()
A.Numberoftwistsinwires
B.Numberofwires
C.Lubricant
D.Foil