並前往http://ftp//webhd.ltsh.ilc.edu.tw/Download/%40Recycle/Software/www8/%25E5%25AE%2598%25E8%2580%2581%25E5%25B8%25AB%25E7%259A%2584%25E7%25B6%25B2%25E9%25A0%2581/longlife/GGB_Classroom/Introduction/GeoGebra-intro.html&ved=2ahUKEwj12fX0zLn0AhWTnRQKHXaMCH8QFnoFCIMCEAE
