国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

The design of multi-function quiz contest Responder can achieve 8 way to answer. The circuit consists of two parts: the main circuit and the extended circuit. The main circuit is composed of encoder, counter, latch and gate circuit. The expansion circuit consists of timers and necessary gate circuits. The host sets the answer in time according to the degree of difficulty of the problem, using the control button control system reset and responder, the countdown time and answer the number of players displayed on the display of decoding, the answer at the beginning and end of the alarm circuit to send out sound to remind the players and the audience. The circuit is simulated by Multisim software ，The maximum setting functions include 8 answer, answer time is 99S, countdown display, player number display, Prompt start sound prompt, players answer the sound prompt and timing time to voice prompts and other functions.