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试述高速钢麻花钻常见的修磨改进方法。

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简述阿苯达唑驱虫作用机理、驱虫谱及应用。

You have an Exchange Server 2007 organization.All users on your network run Microsoft Office Outlook 2007 to access their mailboxes.Outlook 2007 is configured to connect by using RPC over HTTP and Auto discover. You perform a Typical installation of Exchange Server 2010 on a new server， and then move mailboxes to the new server.Users now report that they cannot access their mailboxes.You need to ensure that all users can access their mailboxes. What should you do from the new server？（）

A. Select the Switchover Server option.
B. Enable and configure Outlook Anywhere.
Create and configure a Client Access array.
D. Rename the OWA virtual directory to Exchange.

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减速机正常运转以后应定期（2-3个月）检查油的质量状况，发现不符合要求时应立即更换，一般至少每年换油一次。

A. 正确
B. 错误

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边占边补

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