用户1340774522 转发了 @毅马当闲
的微博:不少学生抱怨我教的高维数据课留的作业太难。给学生们留言：For a homework problem, if it took you one hour to solve, you learned nothing from it; if it took you a day, you learned something; but if it took you more than a week, you would have learned a lot... 原文转发[86] 原文评论[30]
的微博:不少学生抱怨我教的高维数据课留的作业太难。给学生们留言：For a homework problem, if it took you one hour to solve, you learned nothing from it; if it took you a day, you learned something; but if it took you more than a week, you would have learned a lot... 原文转发[86] 原文评论[30]