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单选题
A user is browsing to a newly created internal site called www.comptia.org. After putting incredentials the page comes up blank. Which of the following is MOST likely the cause?（）
A
The user must add the new site to the local log file.
B
A proxy exception has not been configured.
C
SMTP has not been configured.
D
The loopback address has not been configured.
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The user must add the new site to the local log file.B
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