2. 计算机
  3. The following three concepts are essential to the OSI model: service, interface and

The following three concepts are essential to the OSI model: service, interface and

admin2009-02-24  28
问题 The following three concepts are essential to the OSI model: service, interface and
选项 A、networks
B、applications
C、protocols
D、layers
答案C
解析
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笔试

原NCRE全国计算机四级

NCRE全国计算机四级

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