【单选题】【消耗次数：1】
以下说法正确的是( )
①
查询文件的扩展名为.prg
②
查询文件的扩展名为.fpt
③
查询文件的扩展名为.dbf
④
查询文件的扩展名为.qpr
参考答案：
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相关题目
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AutoCAD图形文件扩展名为（），样板文件扩展名为（）。
①
A.*.dwg、*.dwt
②
B.*.dwg、*.dxf
③
C.*.dwt、*.dws
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D.*.dxf、*.dwt
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AutoCAD文件扩展名为[填空]，模板文件扩展名为[填空]。
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③
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