饲料缓冲度
You are developing a Windows Communication Foundation (WCF) service that is hosted by a Windows Forms Application.The ServiceHost instance is created in the Form Constructor.You need to ensure that the service is not blocked while the UI thread is busy. What should you do?（） [" Decorate the service implementation class with the following line of code [ServiceBehavior(UseSyncronizationContext = false)]"," Decorate the service implementation class with the following line of code [ServiceBehavior(ConcurrencyMode = ConcurrencyMode.Multiple)]"," Call the Invoke method of the form and supply a delegate."," Call the BeginInvoke method of the form and supply a delegate."]
室外管网输送效率为（）。 ["管网输出总热量\/管网输入总热量","各段热损失\/管网输入总热量","管网输入总热量\/管网输出总热量","管网输入总热量\/各段热损"]
如果从国家投资主体的角度来看，企业所得税不能作为现金流出量来看待，只有从 企业投资主体的角度才将企业所得税列作现金流出量。
Your network consists of an Active Directory forest that contains one domain named contoso.com. All domain controllers run Windows Server 2008 R2 and are configured as DNS servers. You have two The safer ， easier way to help you pass any IT exams. 10 / 90 Active Directory-integrated zones： contoso.com and nwtraders.com. You need to ensure a user is able to modify records in the contoso.com zone. You must prevent the user from modifying the SOA record in the nwtraders.com zone. What should you do（） ["From the DNS Manager console， modify the permissions of the contoso.com zone.","From the DNS Manager console， modify the permissions of the nwtraders.com zone.","From the Active Directory Users and Computers console， run the Delegation of Control Wizard.","From the Active Directory Users and Computers console， modify the permissions of the Domain Controllers organizational unit （OU）."]
沉郁顿挫
