數(shù)據(jù)傳輸?shù)目煽啃灾笜?biāo)是

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數(shù)據(jù)傳輸?shù)目煽啃灾笜?biāo)是()
    A.速率
    B.誤碼率
    C.帶寬
    D.傳輸失敗的二進(jìn)制信號個(gè)數(shù)