采用单价合同时，在约定的风险范围内综合单价不再调整。
You have an Exchange Server 2010 organization. Company policy states that a copy of a users mailbox must be kept for one year after the user leaves the company. All user accounts are in an organizational unit （OU） named OU1. A compliance administrator plans to export the mailboxes to personal folders. You need to recommend a solution that allows the compliance administrator to meet the requirements ofthe company policy. What should you include in the solution？（） ["a new management role assignment","delegated permissions to OU1","managed folder mailbox policies","new Personal Archive"]
党的（）是党在社会基层组织中的战斗堡垒，是党的全部工作和战斗力的基础。 ["基层组织","干部","党员","党员领导干部"]
招标过程分为三个阶段：准备阶段、招标投标阶段、评标定标阶段。
什么是项目变更管理？项目变更管理的关键是什么？
自洽
