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氧气瓶、乙炔瓶在搬运、存放等过程中的管理措施是什么？

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冬季气瓶、回火防止器、减压器等冻住后应如何正确解冻？

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交通行政处罚的一般程序案件的调查人员不得少于（）人。

A. 2
B. 3
C. 5

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A domain controller named DC12 runs critical services. Restructuring of the organizational unit hierarchy for the domain has been completed and unnecessary objects have been deleted. You need to perform an offline defragmentation of the Active Directory database on DC12. You also need to ensure that the critical services remain online. What should you do（）

A. Start the domain controller in the Directory Services restore mode. Run the Defrag utility.
B. Start the domain controller in the Directory Services restore mode. Run the Ntdsutil utility.
C. Stop the Domain Controller service in the Services （local） Microsoft Management Console （MMC）. Run the Defrag
D. Stop the Domain Controller service in the Services （local） Microsoft Management Console （MMC）. Run the Ntdsutil

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什么是快速缴费？

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