题目内容

硫化氢在采出水中含量增加的主要原因是（）在脱硫细菌的作用下起还原作用。

A. 硫酸根
B. 碳酸根
C. 重碳酸根
D. 亚硫酸根

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You are the administrator for the Xxx Corporation’s Exchange 2010 organization.You notice that all messages sent to recipients in the verigon.com domain， the east.verigon.com domain， and other sub-domains of verigon.com were not delivered.You investigate the problem and you notice that the messages were not delivered because the routing path for delivery was temporarily modified.You have repaired the routing path.You want to resubmit all messages stored on the server named Exchange55 that were not sent to verigon.com and related domains.Which of the following commands should you use？（）

A. Resume-Message -Filter {FromAddress -eq "*verigon.com"}
B. Retry-Queue -Identity "Exchange55\verigon.com" -Resubmit $true
C. Retry-Queue -Identity "Exchange55\Poison" -Resubmit $true
D. Retry-Queue -Identity "Exchange55\Unreachable" -Resubmit $true

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