试题详情
- 单项选择题各种网络在物理层互连时要求（）
A、数据传输率和链路协议都相同
B、数据传输率相同，链路协议可不同
C、数据传输率可不同，链路协议相同
D、数据传输率和链路协议都可不同
- A
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