信息加工不可避免地会产生时间延迟，这是信息的一个重要特征：滞后性。
下列计算公式中，不正确的是（）。 ["资产负债率＝负债总额÷资产总额","速动比率＝速动资产÷流动资产","总资产报酬率＝销售净利率×总资产周转率","股东权益报酬率＝总资产报酬率×权益乘数"]
Your company has an Active Directory forest that contains client computers that run Windows Vista and Microsoft Windows XP. You need to ensure that users are able to install approved application updates on their computers. Which two actions should you perform（） ["Set up Automatic Updates through Control Panel on the client computers","Create a GPO and link it to the Domain Controllers organizational unit. Configure the GPO to automatically search for updates on the Microsoft Update site.","Create a GPO and link it to the domain. Configure the GPO to direct the client computers to the Microsoft WSUS server for approved updates.","Install the Microsoft WSUS application on a server in the environment. Configure the server to search for new updates on the Internet. Approve all required updates."]
种间关系是第二类影响种群动态的因素。种间关系主要包括（）、（）和（）。
钝器所致的损伤是：（） ["切创","刺创","挫裂创","砍创"]
（）被视为继报纸、广播和电视之后的“第四媒介”。
