儿童手机对小学生生活、学习有哪些影响？是不是越小的粉尘，越难被口罩过滤？日前，百家湖小学的25名同学带着精心策划的课题前往北京，参加第十一届中国少年科学院“小院士”课题研究成果全国答辩展示评比，并刷...
Children phone for pupils to live, learn what are the implications? It is not as small as dust, the harder it is filtered masks? Recently, hundreds of lakes elementary school students with a well-planned 25 subjects to Beijing at the 11th Chinese Academy of juvenile "Little Fellow" national defense research results show competitions, and brush ...
