Generally speaking, the slides of PPT should look flashy with suitable pictures or illustrations on them.
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The closing part of a memo focuses on outcomes and supporting details.
A. 对
B. 错
Windows Server 2012 R2中用于Web服务的端口是（）
A. 21
B. 80
C. 53
D. 25
Windows Server 2012 R2中用DNS域名解析服务的端口是（）
A. 53
B. 21
C. 80
D. 161
Windows Server 2012 R2中NetBIOS的会话端口是（）
A. 23
B. 53
C. 80
D. 139
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