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四位抢答器

于 2022-03-26 发布 文件大小:405.90 kB
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设计一个可容纳四组参赛的数字式抢答器,每组设一个按钮供抢答使用。抢答器具有第一信号鉴别和锁存功能,使除第一抢答者外的按钮不起作用;设置一个主持人“复位”按钮,主持人复位后,开始抢答,第一答对一次加1分,答错一次减1分

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