什么是会计要素？各个会计要素的涵义是什么？它们相互之间有什么关系？
汽油机在运转中高压线脱落会导致（）。 ["逐渐熄火","突然熄火","启动不着","启动困难"]
Company.com network consists of a single Active Directory domain named Company.com.Company.com has an Exchange Server 2010 organization.You have received instructions from the CIO to use a wildcard certificate for Outlook Anywhere.You now need to set up the Exchange Server 2010 organization for the wildcard certificate. What should you do？（） ["The best option is to change the RPC virtual directory from the Internet Information Services （IIS） Manager.","The best option is to change the properties of the WEB Outlook Provider from the Exchange Management Shell.","The best option is to change the RPC virtual directory from the Autodiscover virtual directory.","The best option is to change the properties of the EXPR Outlook Provider from the Exchange Management Shell."]
Your virtual environment includes Windows Server 2008 R2 Hyper-V servers. You manage the environment by using Microsoft System Center Virtual Machine Manager （VMM） 2008 R2. You are planning to install an application upgrade. Testing the production application requires access to the following three virtual machines （VMs）： a domain controller， a server that runs Microsoft SQL Server， and an IIS Web server. You need to test the application upgrade in a virtual environment that is isolated from the production network. Which two sets of actions should your plan include？（） ["Import the checkpoint into the test environment， and apply the application update for testing","Create a checkpoint of the three VMs， and export the checkpoint to the test environment","Create three VMs in the test environment， attach the existing .vhd files， and apply the application update for testing","Pause the three VMs， and copy the .vhd files to the test environment"]
简述公开市场操作的优点。
什么是会计科目？什么是账户？为什么要设置会计科目和账户？
