fill in the blanks
[color=#333333][size=2][font=-apple-system, BlinkMacSystemFont, "PingFang SC", Helvetica, Tahoma, Arial, "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, SimSun, 宋体, Heiti, 黑体, sans-serif]force to hand in test papers after switching the screen 1 times[/font][/size][/color]
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