专业技术人员常见的心理防御机制有哪些？（至少5条）
You have a server named Server1 that runs Windows Server 2003 Service Pack 2 (SP2). Windows Firewall allows the following ports on Server1:·53 ·110 ·135You plan to install a monitoringserver on the network.You need to ensure that the monitoring server can use Server1 to relay e-mail messages. You install the SMTP service on Server1. What should you do next?（） ["Install SNMP.","Install the POP3 service.","Create an exception for TCP port 21 in Windows Firewall.","Create an exception for TCP port 25 in Windows Firewall."]
不属于垃圾渗滤液中的有机物是（） ["低分子量的脂肪酸类","中等分子量的富里酸类物质和腐殖质","甲烷","高分子量碳水化合物"]
体验的核心是（）。
Which two Cisco UCS features facilitate easy deployment of server farms?（） ["cloning","CMCs","IOMs","Template"]
某总公司加权平均投资利润率为18％，其所属A投资中心的经营资产平均余额为400万元，利润为100万元。现该投资中心有一投资项目，投资额为50万元，预计投资利润率为20％。若该公司要求的最低投资报酬率为其加权平均投资利润率。要求：如果不考虑投资项目，计算A投资中心目前的投资利润率；
