以下关于校验码的叙述中,正确的是 I 校验码的码距必须大于2 II 校验码的码距越大,检错、纠错能力越强 III 增加奇偶校验的位数,可以提高奇偶校验的正确性 IV 采用寄 偶校验可检出一位数据错误的位置并加以纠正 V采用校验可检测出一位数据错误的位置并加以纠正 VI CRC码是通过除法运算来建立数据与校验码之间的约定关系的
【简答题】用所给词的适当形式填空。 1.My little son enjoys English but he has trouble (pronounce) English words. 2.My life (change) a lot in the last few years. 3.Don't get your ears (pierce). 4.When we are angry, however, ...
【简答题】根据句意,用括号里所给单词的适当形式填空。 1. He is friendly to his classmates, and has made many______(friend) here. 2. After two days off on weekends, we always feel very ______(relax). 3. —What about ______ (have) a fa...
【简答题】根据句意,用括号里所给单词的适当形式填空。 小题1:He is friendly to his classmates, and has made many_______ (friend) here. 小题2:After two days off on weekends, we always feel very _______(relax). 小题3:—What about________ (hav...