填空題當(dāng)今以太網(wǎng),經(jīng)常采用雙絞線或光纜,組建星型拓?fù)浣Y(jié)構(gòu)網(wǎng)絡(luò)。交換型以太網(wǎng)逐漸替代共享型以太網(wǎng),并使用()以太網(wǎng)技術(shù)。

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