冠亚和值规律怎么看?

简介：The class paused for a while and started talking. They all understood the meaning of the old man's words. They cheered loudly and applauded thunderously. In the last row, there was a bold troublemaker who stepped on a stool and slapped the table with a book in his hand. He yelled, but Old Man Yan glared at him before he calmed down.