[单选] You need to write a multicast delegate that accepts a DateTime argument.Which code segment should you use？（）

《搜神记》 Your company has active directory certificate services (AD CS) and network access protection (NAP) deployed on the network. You need to ensure that NAP policies are enforced on portable computers that use a wireless connection to access the network. What should you do?（） Configure all access points to use 802.1x authentication.。 Configure all protable computers to use MS-CHAP v2 authentication.。 Use the group policy management console to access the wireless group policy settings, and enable the prevent connections to ad-hoc network option.。 Use the group policy management console to access the wireless group policy settings, and disable the prevent connections to infrastructure networks option.。 企业应当加强对退货的管理，保证退货环节医疗器械的质量和安全，防止混入假劣医疗器械。 Your network consists of a single Active Directory domain. All domain controllers run Windows Server  2003.   You upgrade all domain controllers to Windows Server 2008 R2.   You need to ensure that the Sysvol share replicates by using DFS Replication (DFS-R).  What should you do（）  From the command prompt， run netdom /reset.。 From the command prompt， run dfsutil /addroot：sysvol.。 Raise the functional level of the domain to Windows Server 2008 R2.。 From the command prompt， run dcpromo /unattend：unattendfile.xml.。 头围的大小间接反映了颅骨及脑的发育。婴儿1岁时头围的平均值为（）厘米 22。 32。 46。 66。 You need to write a multicast delegate that accepts a DateTime argument.Which code segment should you use？（）