單項選擇題

某校園網(wǎng)通過數(shù)據(jù)通信網(wǎng)與ISP相通,下面屬于數(shù)據(jù)通信網(wǎng)的是()

A.ISDN
B.BBS
C.電話網(wǎng)
D.以太網(wǎng)

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