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YIFA LIU
YIFA LIU  created a new article
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The role of cell phone signal jammers in college entrance examination | #cell phone

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The role of cell phone signal jammers in college entrance examination

By using technical means such as mobile phone signal jammers and "mandatory" restrictions on cheating in exams for a certain period of time, we can gradually achieve a complete change in concepts, cultivate and improve people's awareness of integrity. When the social cred
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