A."1"的個數(shù)為奇數(shù) B."1"的個數(shù)為偶數(shù) C.最低位為"1" D.最高位為"1"
A.X·Y B. C. D.X+Y
A.循環(huán)冗余校驗碼 B.海明校驗碼 C.奇校驗碼 D.偶校驗碼