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You are creating a Windows Forms application by using the .NET Framework 3.5.You write the following code segment to bind a list of categories to a dropdown list.(Line numbers are included for reference only.) You need to ensure that the dropdown list meets the following requirements:  (1)Displays all category names   (2)Uses the category ID as the selected item value    Which code segment should you add at line 06?()

  • A、A
  • B、B
  • C、C
  • D、D
正确答案:B
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