A . .doc
B . .ppt
C . .txt
D . .xls
[单选题]PowerPoint演示文稿的缺省扩展名为()。A.docB.txtC.pptD.xls
[单选题]演示文稿类型的扩展名()A . .htmB . .pptC . .ppsD . .pot
[单选题]PowerPoint演示文稿的扩展名是A..DBCB..EXEC..PPTD..XLSE..DOC
[单选题]PowerPoint演示文稿的扩展名是()。A . pptB . pwtC . docD . xls
[单选题]PowerPoint演示文稿的扩展名是( )。A.XLSB.DBCC.PPTD.EXEE.DOC
[B单选题]PowerPoint演示文稿的扩展名是A..DBCB..EXEC..PPTD..XLSE..DOC
[单选题]PowerPoint演示文稿的扩展名是( )。A.XLSB.DBCC.PPTD.EXEE.DOC
[B单选题]PowerPoint演示文稿的扩展名是A..DBCB..EXEC..PPTD..XLSE..DOC
[单选题]PowerPoint演示文稿的扩展名是( )。A.XLSB.DBCC.PPTD.EXEE.DOC
[单选题]PowerPoint演示文稿的扩展名是( )。A.XLSB.DBCC.PPTD.EXEE.DOC