简述现代组织的特点。
You are creating a Window Commnunication Foundation (WCF) service application. The application needs to service many clients and requests simultaneously. The application also needs to ensure subsequent individual client requests provide a stateful conversation. You need to configure the service to support these requirements. Which attribute should you add to the class that is implementing the service?（） [" [ServiceBehavior(lnstanceContextMode = lnstanceContextMode.PerSession, ConcurrencyMode = ConcurrencyMode.Single)]"," [ServiceBehavior(lnstanceContextMode = lnstanceContextMode.PerCall, ConcurrencyMode = ConcurrencyMode.Reentrant)]"," [ServiceBehavior(InstanceContextMode = lnstanceContextMode.PerSession, ConcurrencyMode = ConcurrencyMode.Multiple)]"," [ServiceBehavior(lnstanceContextMode = lnstanceContextMode.PerCall, ConcurrencyMode = ConcurrencyMode.Multiple)]"]
在市场机制的各要素中，（）是核心。 ["政策","竞争","供求","价格"]
简述合同有效成立的条件。
Certkiller.COM包含八个链接的GPO的Active Directory林中。八GPO的出版应用到用户对象。一个用户报告，该应用程序是不可用于安装。你有身份是否GPO应用。来实现这个任务，你应该怎么做呢（） ["在命令提示符下运行Gpresult的\/ SCOPE计算机命令。","运行Gpresult的\/ S的<系统名称>在命令提示符\/ Z命令。","计算机运行组策略结果的实用工具。","用户运行组策略结果的实用工具。"]
何谓酶生物合成的诱导作用？简述其原理。
