9宫格数独的解法与技巧视频

简介：As soon as the class teacher left, the two classes became even more noisy. There were some unfamiliar people at first, but they immediately became familiar with each other after eating melon seeds and chatting. Although both classes were liberal arts students, there were more boys in the first class. On the contrary, Class 2 is mostly composed of girls, and the boys only have four or five big and small cats, making them relatively lonely.