【单选题】下列码组中属于HDB3码的是（）。

【单选题】码组“1101001101”的码重为

【单选题】码组110100101进行汉明码编码,则监督码为()位

【简答题】【名词解释】票证填写差错率

【单选题】下面哪个码组是奇异码？（）

【简答题】码元差错率

【判断题】统一社会信用代码及其位主体标识码（组织机构代码）在全国范围内是唯一的。

【简答题】Jerry was the kind of guy who was always in a good mood and always had something positive to say. When someone would ask him how he was doing, he would reply, "If I were any better, I would be twins!"...

【单选题】偶监督码的码组中“0”的个数为()

【单选题】偶监督码的码组中“0”的个数为（）。