(With the widespread use of the Internet, most universities, middle schools and primary schools have connected to the Internet in order to facilitate teachers and students to study. However, some unconscious students use the school computer room as a free Internet cafe to play games, watch videos, read and Studying irrelevant pages, chatting on QQ, etc., not only students, but a few teachers also use the school's network resources to download videos to go home for entertainment, or to trade stocks online, etc. Such bad online behaviors of some teachers and students violate the school's original intention of accessing the Internet. Not to mention the delay in study time, the internal LAN of the school was blocked, and the normal teaching order was disrupted innocently.)
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