A、CTRL-P B、CTRL-O C、ALT-P D、ALT-O
A、數(shù)據(jù)終端準備好; B、數(shù)據(jù)準備好; C、數(shù)據(jù)載體檢測; D、請求發(fā)送; E、清除發(fā)送。
A.以太網(wǎng)B.快速以太網(wǎng)C.令牌環(huán)網(wǎng)D.FDDI網(wǎng)