Warning: file_put_contents(): Only 0 of 8600 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu.com/index.php on line 58 Hackbarth是什么意思，Hackbarth的翻译，Hackbarth音标、读音、用法和例句_英语字典
A core aim of educational technology is the cost-effective achievement of measurable learning objectives, or maximum bang for the buck (Hackbarth, 1996). 使用教育科技的目的是希望能以最具經濟效益的方式提昇社會生產力，以求取全社會的最佳生活方式。