给高层建筑供暖时供热面积不宜大于70000㎡，给多层建筑供暖时供热面积不宜大于（）㎡。 30000。 40000。 50000。 60000。
《拾遗记》
简述影响土壤水分状况的因素。
生产安全事故调查处理应当遵循的原则是？
You develop a Windows Communication Foundation (WCF) service to generate reports. Client applications call the service to initiate report generation but do not wait for the reports to be generated. The service does not provide any status to the client applications. The service class is defined as follows. (Line numbers are included for reference only.) 01 [ServiceContract] 02 public class ReportGeneratorService 03 { 04 ... 05 private int GenerateReports(int clientID) 06 { 07 ... 08 return 0; 09 } 10 } You need to ensure that client applications can initiate reports without waiting for status. Which two actions should you perform (Each correct answer presents part of the solution. Choose two.) （）。 Insert the following code at line 04. [OperationContract(IsOneWay=true)]。 Insert the following code at line 04. [OperationContract(AsyncPattern=false)]。 At line 05, change the GenerateReports method from private to public.。 Remove line 08. At line 05, change the return type of GenerateReports method to void.。
You work in a company which is named Wiikigo Corp. The company uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance.You must make sure that all SQL Server instances are consistently configured for naming conventions, security settings, force index creation and avoidance of data fragmentation. So what action should you perform to achieve this goal?（）
