【简答题】A.He needs to press F7 to return to the document before he prints it. B.He has to print the document to see the page numbers. C.The printer is not working correctly. D.The numbers are on the screen bu...
【简答题】A.He needs to press F7 to return to the document before he prints it. B.He has to print the document to see tile page numbers. C.The printer is not working correctly. D.The numbers are on the screen b...