叩击或振颤法排痰，应在餐前（）或餐后（）进行
常用的气体保护焊的气体有哪几种？为什么以氩气用得最多？
关于事业单位人员培训的下列说法中，错误的是（）。 从形式上看，固定单一，不够灵活。 从性质上看，它是一种继续教育。 从内吝上看，突出实用性。 从目的来看，是提高素质和工作能力。
不含水分的饱和蒸汽称为（） 湿饱和蒸汽。 干饱和蒸汽。 过热蒸汽。
You deploy an Exchange organization.All servers in the organization have Exchange Server 2010 Service Pack 1 （SP1） installed.The organization contains two Hub Transport servers.The network contains two Active Directory sites named Site1 and Site2.Each site contains one Hub Transport server.Each site has a direct connection to the Internet.You need to configure message routing for the organization to meet the following requirements： （1）E-mail messages sent to a SMTP domain named nwtraders.com must be delivered from Site2. （2）If Site2 is unavailable， e-mail messages sent to nwtraders.com must be delivered from Sitel. （3）E-mail messages sent to all other SMTP domains must be delivered from Sitel only. What should you do？（） Create two Send connectors.Assign one Hub Transport server as a source server to each Send connector.Configure the connectors as Scoped send connectors.。 Create one Send connector.Assign both Hub Transport servers as source servers.Configure the connector as a Scoped send connector.。 Create one Send connector.Assign both Hub Transport servers as source servers.Configure the address spaces for the connector， and then configure the costs for the address spaces.。 Create two Send connectors. Assign one Hub Transport server as a source server to each Send connector.Configure the address spaces for each connector.。
厂内机动车辆使用单位要建立健全岗位安全责任制和安全管理制度以实现厂内机动车辆管理的（）。
