You are creating a Windows Forms application by using the .NET Framework 3.5.You plan to develop a custom control for the application. The control will be a composite control.Your need to derive from the class that will create the control by using the minimum amount of development effort.What should you do？（）
You are creating a SQL Tuning Set to allow a group of SQL statements to be&...
2、若a=5，b=3，c=4，逻辑表达式!（a+b）&；&；!c的值
若a=5，b=3，c=4，逻辑表达式!（a+b）&；&；!c的值为（）A0B-1C1D2
You are creating a Windows Forms application by using the .NET Framework 3.5. You ...
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You are creating a Windows Forms application by using the .NET Framework 3.5.You have&#...