哈哈，前一阵不是有某省的学校给学生戴感应器，监测课堂是否精力集中，这东西再发展一步，就是主动控制了。

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.

Copyright ©1998-2024 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy