A.節(jié)點(diǎn)在發(fā)送數(shù)據(jù)之前首先要判斷是否有其他節(jié)點(diǎn)正在發(fā)送數(shù)據(jù)
B.節(jié)點(diǎn)在收到數(shù)據(jù)之后要發(fā)送確認(rèn)信號給數(shù)據(jù)的源節(jié)點(diǎn)
C.兩個(gè)節(jié)點(diǎn)不能同時(shí)發(fā)送數(shù)據(jù)
D.未收到確認(rèn)信號時(shí)，源節(jié)點(diǎn)會(huì)有限次的嘗試重新發(fā)送數(shù)據(jù)