TCP means it is on the(74)layer and IP means it is on the(75)layer.

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问题 TCP means it is on the(74)layer and IP means it is on the(75)layer.

选项 A、network
B、transport
C、data link
D、application

答案D

解析 译文:TCP协议是传输层协议,IP协议是网络层协议。
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