社会工作者小吴接受机构安排,到某社区开展活动,他在进入社区之初的首要任务是()。
A. 了解社区的地理环境
B. 了解社区内的资源分布
C. 让社区中的居民、团体和组织认识自己
D. 熟悉社区居民的生活方式
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Your network consists of a single Active Directory domain named contoso.com. All network servers run Windows Server 2003 Service Pack 2 (SP2).You have a DNS zone named contoso.com. The zone is configured to support dynamic updates. All servers in the company are registered in the contoso.com zone. You change the IP address of a server named Server1. From a server named Server2, you attempt to ping Server1 by host name, but the request fails. You successfully ping the new IP address of Server1.You need to ensure that Server2 can connect to Server1 by using the Server1 host name. Which two actions should you perform?()
A. On Server1, restart the Netlogon service.
B. On Server2, run the Ipconfig /flushdns command.
C. On Server1, run the Ipconfig /Registerdns command.
D. On the DNS server, run the Dnscmd /zonerefresh contoso.com command.
中国期刊全文数据库中初级检索界面的默认检索字段是()。
A. 篇名
B. 关键词
C. 主题
D. 摘要
在开关电源中,()电路控制开关管的导通或截止时间,使其输出电压最终稳定。
A. 脉冲调宽
B. 取样
C. 误差放大
D. 滤波
我国现行空域管理体制,是在空管委的统一领导下,哪个部门负责统一组织实施()。
A. 空军
B. 国务院
C. 空管委
D. 军航管制部门