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2. 关于电路交换和分组交换,下列说法不正确的是 ( )

单选题
2021-09-01 16:45
A、电路交换是面向连接的
B、分组交换是面向无连接的
C、分组交换使用的是存储转发技术
D、电路交换的传输效率往往很高
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正确答案
D

试题解析

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