下述有关局麻药的描述较切当的是（） 不可逆地阻断神经冲动的产生和传导。 局部麻醉作用是一种局部作用。 可以导致神经结构的永久性损伤。 对心肌有一定的兴奋性。
标题是如何体现主题或内容的？（） 把标题写成问题。 标题和主题无关。 标题和内容无关。 标题揭示概括主题或内容。
You have an Active Directory forest that contains three sites named Site1， Site2， and Site3. Each site contains two Exchange Server 2007 Client Access servers， two Mailbox servers， and two Hub Transport servers. All Exchange Server 2007 servers have Exchange Server 2007 Service Pack 1 （SP1） installed. You need to ensure that you can deploy Exchange Server 2010 servers in Site1. You must achieve this goal by using the minimum amount of administrative effort. What should you do（）？ Upgrade all Client Access servers in the organization to Exchange Server 2007 Service Pack 2 （SP2）.。 Upgrade all Exchange Server 2007 servers in Site1 to Exchange Server 2007 Service Pack 2 （SP2）.。 Upgrade all Exchange Server 2007 servers in the organization to Exchange Server 2007 Service Pack 2 （SP2）.。 Upgrade all Exchange Server 2007 servers in Site1 and all Client Access servers in the organization to Exchange Server 2007 Service Pack 2 （SP2）.。
叉车的稳定性是指？
You are designing the security for dial-up remote access to meet the business and technical requirements. Which two mechanisms should you use？ （） EAP-TLS authentication。 MS-CHAP v2 authentication。 a stand-alone certification server。 an enterprise certification server。 MPPE 56-bit encryptio。
当改变了实例的属性，其对应元件的相关属性会不会改变？（）
