不好。如果说手机没有调个静音或者是震动的话，那就会打断老师的思路，而且同学也会不满~。其实我觉得中学生没有必要用手机，自然也不应该把手机带到教室。手机辐射大而且很脏.外国的科学家研究过了手机其实比厕所的地板还脏.而且中学生要手机来做什么呢?If there is no cell phone or transfer of mute shock, it will interrupt the teacher's ideas, but also dissatisfaction with Student 。In fact, I think there is no need for students to use cell phone, n...
