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什么是洄游？它的类型。

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对于在监管文化建设中表现突出的先进典型，不仅要大力进行宣传表彰，而且还要给予一定的物质奖励。（）

A. 正确
B. 错误

our network consists of a single Active Directory domain. You have a DHCP server that runs Windows Server 2003 Service Pack 2 (SP2). All client computers run Windows XP Service Pack 3 (SP3). A user named User1 reports that when she starts her computer, she receives a duplicate address error message. You confirm that her computer is configured as a DHCP client. You need to ensure that User1 receives a unique IP address from the DHCP server. What should you do on the DHCP server? （）

A. Reconcile the scope.
B. Create a superscope.
C. Enable conflict resolution.
D. Increase the number of IP addresses available in the scope.

直流焊机空载电压55-90V，不属于安电压。

A. 正确
B. 错误

当水池自重小于浮力时会浮起；应考虑的因地制宜措施是（）。

A. 基坑四周设防汛墙
B. 水池下及基坑内四周埋设排水盲管
C. 抽干基坑内积水
D. 使水池内、外无水位差