A.確認(rèn)數(shù)據(jù)送達(dá) B.數(shù)據(jù)傳輸?shù)难舆t最短 C.數(shù)據(jù)傳輸?shù)母呖煽啃?br /> D.同序數(shù)據(jù)傳輸
A.0到255 B.256到1022 C.0到1023 D.1024到2047