A.市場經(jīng)濟 B.社會經(jīng)濟 C.知識經(jīng)濟 D.計劃經(jīng)濟
A.基礎(chǔ)電信網(wǎng) B.互聯(lián)網(wǎng) C.寬帶網(wǎng) D.DDN網(wǎng)
A.REXEC B.FTP C.Ping D.TFTP