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多項(xiàng)選擇題

You are developing an ASP.NET Web page. You add the following markup to the page.
You add the following code segment to the code-behind.
You need to save the uploaded file and display a message to the user that indicates that the upload either succeeded or failed. Which two actions should you perform?()

A.Replace line 3 with the following code segment. if (FileUpload1.HasFile)
B.Replace line 3 with the following code segment. if (FileUpload1.FileContent.Length > 0)
C.Insert the following code segment at line 6.  FileUpload1.SaveAs(saveName);
D.Insert the following code segment at line 6. FileUpload1.FileContent.CopyTo(new FileStream(saveName, FileMode.Open);

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