[{"title":"(2个子文件41.82MB)数据挖掘概念与技术第三版(英文原版)加中文版","children":[{"title":"数据挖掘概念与技术第三版.pdf <span style='color:#111;'>34.09MB</span>","children":null,"spread":false},{"title":"数据挖掘概念与技术第三版(英文原版).pdf <span style='color:#111;'>14.39MB</span>","children":null,"spread":false}],"spread":true}]