You are developing an ASP.NET Web page. The page contains the following markup. 
The pages code-behind file includes the following code segment. 
You need to get a reference to the Image named img. Which code segment should you add at line 06？（）

单项选择题You are implementing an ASP.NET Web site that uses a custom server control named Task. Task is defined as shown in the following list.    Class name： Task   Namespace： DevControls   Assembly： TestServerControl.dll   Base class： System.Web.UI.WebControls.WebControl    You copy TestServerControl.dll to the Web sites Bin folder.  You need to allow the Task control to be declaratively used on site pages that do not contain an explicit @ Register directive.  Which configuration should you add to the web.config file？（）

A.<appSettings> <add key="Dev:Task" value="DevControls, DevControls.Task"/> </appSettings>  
B.<compilation targetFramework="4.0" explicit="false"> <assemblies> <add assembly="TestServerControl" />      </assemblies> </compilation>
C.<pages> <controls> <add assembly="TestServerControl" namespace="DevControls" tagPrefix="Dev"/>      </controls> </pages>
D.<pages> <tagMapping> <add tagType="System.Web.UI.WebControls.WebControl"  mappedTagType="DevControls </tagMapping> </pages>  

单项选择题YouaredevelopinganASP.NETWebpage.ThepageincludesaListinstance.YouaddaFormViewcontroltodisplayasingleProductfromthislist.YouneedtobindthelisttotheFormViewcontrol.WhichFormViewpropertyshouldyousetinthecode-behindfile？（）

A.DataSource
B.DataSourceID
C.DataKeyNames
D.DataMember

单项选择题Gridview：Howtochangetheimageofanimagecontrolplaceineachrowinagridview：（）

A.ItemDataBound
B.Init 
C.Prerender 
D.<something I don‟t remember>

单项选择题YouaredevelopinganASP.NETWebpage.Youaddadata-boundGridViewcontrol.TheGridViewcontainsaTemplateFieldthatincludesaDropDownList.YousettheGridViewsClientIDModepropertytoStatic，andyousettheClientIDRowSuffixpropertytoProductID.YouneedtobeabletoreferenceindividualDropDownListcontrolsfromclient-sidescriptbyusingtheProductID.WhatshouldyousettheClientIDModepropertyoftheDropDownListto？（）

A.AutoID
B.Static
C.Inherit
D.Predictable

单项选择题YouaredevelopinganASP.NETWebpagethatwilldisplaythemedianvaluefromasequenceofintegervalues.Youneedtocreateanextensionmethodtocomputethemedianvalue.Whichinterfaceshouldyouaddtheextensionmethodto？（）

A. IComparer<T>
B. IEnumerable<T>
C. IEnumerator<T>  
D. IEqualityComparer<T>