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Question summary: 技师甲说：CAN总线采用独特的非破坏性总线仲裁技术，优先级高的节点优先传送数据，可满足实时性要求 技师乙说：CAN总线具有点对面、一点对多点及全局广播传送数据的功能: 甲乙都不正确; 只有乙正确; 甲乙都正确; 只有甲正确

Right answer summary: 只有甲正确

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Question state: todo