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当前学科:计算机网络工程(信息管理)
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6、网络协议的三要素是语法、语义与时序,语法是关于( )
A. 事件实现顺序的详细说明
B. 接口原语的规定
C. 用户数据与控制信息的结构和格式的规定
D. 需要发出何种控制信息,以及完成的动作与作出的响应的规定
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