主持人通过时间预设开关预设供抢答的时间，系统将完成自动倒计时。
The host sets the provided time for the answering race through the time-setting switch, after this the system will count down the time automatically.
主持人通过时间预设开关预设供抢答的时间，系统将完成自动倒计时。
Host through the default time for switching the default Answer time, the system will automatically countdown to complete.
主持人通过时间预设开关预设供抢答的时间，系统将完成自动倒计时。
Host through the default time for switching the default Answer time, the system will automatically countdown to complete.
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