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数据交换技术中,传输数据之前不需在两个站之间建立连接的是()

更新时间:2024-11-01 23:29:21
A、数据报组交换
B、电路交换
C、虚电路方式分组交换
D、信元交换
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正确答案:

A

答案解析:

暂无解析

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