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272.相鄰兩對線相互絞混的障礙稱為 (A)自混 (B)他混 (C)電混 (D)地氣。
問題詳情
272.相鄰兩對線相互絞混的障礙稱為
(A)自混
(B)他混
(C)電混
(D)地氣。
參考答案
答案:B
難度:
計算中
-1
書單:
沒有書單,新增
上一篇 :
271.同一對電話線的 L1( Tip) 和 L2 (Ring) 銅導體相碰觸的障礙稱為 (A)斷路 (B)他混 (C)絕緣不良 (D)自混 。
下一篇 :
273.下圖為一電信線路圖,請問 CLA 障壁電纜應佈放於何處 (A)A (B)B (C)C (D)D。
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