怎么判断长龙或单跳

简介：There are a few unnamed papers left. You can find them by yourselves after class. After Li Bingmiao finished speaking, he changed his mind and said: There is a multiple-choice question in this weekly English test, which is beyond the scope of the high school sophomore study test. Only a few people in the whole grade answered it correctly, and only three people in our class answered it correctly, namely Cheng Keshu, Li Tao, and Su. Three people.