说明：  本八路抢答器设计使用方法非常简单，从上述工作原理可知，抢答前只需先将开关K置于然后再置于即可进行抢答
(Answer the eight-way design is very simple to use, from the above-mentioned principle, we can see that Answer just before the first place and then switch K can be carried out under the Answer)