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《系统集成项目管理工程师3年真题透解与全真模拟》模拟试题三
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试题来源:《系统集成项目管理工程师3年真题透解与全真模拟》模拟试题三

试题内容

The network layer provides services to the transport layer. It can be based on either virtual circuits or datagrams. In both cases, its main job is ( )packets from the source to the destination.
A. dealing with
B. sending
C. routing
D. receiving


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