简要说明什么叫面向连接？什么叫面向无连接？
变压器是根据（）原理进行电能传递和电能之间转换的。 ["叠加","磁通变化","磁感应强度","电磁感应"]
You are developing a data contract for a Windows Communication Foundation (WCF) service. The data in the data contract must participate in round trips. Strict schema validity is not required. You need to ensure that the contract is forward-compatible and allows new data members to be added to it. Which interface should you implement in the data contract class?（） ["ICommunicationObject","IExtension","IExtensibleObject","IExtensibleDataObject<\/t><\/t>"]
党章规定，年满（）岁的中国工人、农民、军人、知识分子和其他社会阶层的先进分子，承认（），愿意参加党的一个组织并在其中积极工作、执行（）和按期（）的，可以申请加入中国共产党。
Your company network has an Active Directory forest that has one parent domain and one child domain. The child domain has two domain controllers that run Windows Server 2008. All user accounts from the child domain are migrated to the parent domain. The child domain is scheduled to be decommissioned. You need to remove the child domain from the Active Directory forest. What are two possible ways to achieve this goal（） ["Delete the computer accounts for each domain controller in the child domain. Remove the trust relationship between the parent domain and the child domain.","Run the Dcpromo tool that has individual answer files on each domain controller in the child domain.","Run the Computer Management console to stop the Domain Controller service on both domain controllers in the child domain.","Use Server Manager on both domain controllers in the child domain to uninstall the Active Directory domain services role."]
发生短路后有什么后果？
