狠狠撸shows by User: johndoewho

狠狠撸shows by User: johndoewho / http://www.slideshare.net/images/logo.gif 狠狠撸shows by User: johndoewho / Wed, 27 May 2009 09:57:43 GMT 狠狠撸Share feed for 狠狠撸shows by User: johndoewho 98.04 /slideshow/9804/1496172 98-04-090527095749-phpapp01
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98.04 from 驥韡羅

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0 https://cdn.slidesharecdn.com/profile-photo-johndoewho-48x48.jpg?cb=1522832477 數學動態幾何軟體 GeoGebra 研習講師、作家。