When host press vies to answer first start button, the countdown begins, S13 time 5 s.
当主持人按下抢答开始按键s13后，倒计时开始，计时5s。
If the host did not press start, there are the key players vies to answer first, then as a foul.
若主持人没有按开始键，就有选手抢答，则视为犯规。
The procedures for a vies to answer first device Among them the host control S12 and S13 two buttons.
本程序为一抢答器；其中主持人操控s12与S13两个按键。
应用推荐