科研之友
微信
新浪微博
Facebook
分享链接
摘要
<正>你和手机搭档多少年了？每天使用手机多长时间？你们学校对携带手机有何规定？与使用手机相关的发明和研究，你又知道多少？01china bans smartphones in schools中小学生带手机进课堂？不行In a notice published by the Ministry of Education in February 2021, elementary and secondary school students are asked not to bring their cell phones onto the campus,
