下面对电子邮件业务描述正确的是（）。 -题库考试答案搜索网

下面对电子邮件业务描述正确的是（）。

单选题

2021-09-03 19:58

A、所有使用电子邮件的设备接收和发送都使用SMTP协议
B、必须将电子邮件下载到本地计算机才能察看、修改、删除等
C、必须使用专用的电子邮件客户端（如OutLook）来访问邮件
D、电子邮件体系结构中包含用户代理、邮件服务器、消息传输代理和邮件协议

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正确答案

D

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标签：应用层协议高级网络规划设计师 CMS专题

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