单选题DNS指的是（）。A动态主机B接收邮件的服务器C发送邮件的服务器D域名系统
单选题
DNS指的是（）。
A
动态主机
B
接收邮件的服务器
C
发送邮件的服务器
D
域名系统
参考解析
解析：
暂无解析
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