读零件图的方法步骤有哪些？
控制加密和解密过程的指令称为（）。 ["解密","密钥","加密","密文"]
You are developing a Windows Communication Foundation (WCF) service. You write a method named Submit that accepts messages of the type System.ServiceModel.Channels.Message. You need to process the body of the incoming messages multiple times in the method. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)（） [" Use the GetBody method of the Message class to read the content of the messages."," Use the CreateBufferedCopy method of the Message class to load the messages into memory."," Use the WriteBodyContents method of the BodyWriter class to make a copy of the messages."," Use the CreateMessage method of the MessageBuffer class to make a copy of the messages."]
Certkiller。COM单个域的Active Directory林中。域运行Windows Server 2008的。新的管理员不小心删除整个Active Directory数据库的主机6000对象的组织单位。 您已备份系统状态数据使用第三方备份软件。要还原的备份，你开始在目录服务还原模式（DSRM）的域控制器。 您需要执行的组织单位的权威性还原域控制器恢复到其原始状态。你应该执行哪三个动作？
简述有效应力公式中有效应力和孔隙水压力的物理意义
医疗器械不良事件监测
