单项选择题

A user can send e-mail， but cannot receive any e-mail. Which of the following settings should be verified in the e-mail account？（）

A.MAC address
B.TCP/IP address
C.POP Server settings
D.SMTP Server settings

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单项选择题

A.Device Manager
B.System Properties
C.Membership Manager
D.Network and Dial Up Connections

单项选择题

A.RG-59 coaxial cable
B.RS-232 Null Modem cable
C.telephone cable
D.UTP CAT5 patch cable

单项选择题

A.WINS（windows internet name service）
B.HOSTS
C.DNS
D.LMHOSTS