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某大学一公共课堂上,一两百人正在听老师讲课,突然“叮铃铃”的手机铃声响起,老师严肃地说:“上课时请先关上手机, 或者设置成振动档”。话音未落, 铃声又响起,老师刚要动怒,却发现自己的手机也在响。学生哗
In a public class in a university, one or two hundred people are listening to the teacher and suddenly the bell rings, and the teacher says seriously: “Stop the phone or set it as a vibratory file during the class.” The voice did not fall and the bell sounded again. The teacher was just about to get angry but found that his mobile phone was ringing. Students