大小单双图怎么看

简介：Bao Xiaoyi was overjoyed, but he was very cautious and secretly copied without being seen by the two teachers. As the saying goes, he is a veteran who has been fighting in the exam room for many years. There are policies and countermeasures, and the old man Yan has a high degree of presbyopia. He sits on the podium. It's just a decoration, and the chemistry teacher is quite lenient and deliberately lets the students do better in the exam.