#早安学会#今日晨，空气质量指数: 北京: 222 (重度污染）, 上海: 97 (空气质量良), 广州: 40 (空气质量优)。Choose good and hand in, choose good books and reading, choose the word and listen, choose the good from the. ——择善人而交，择善书而读， 择善言而听， 择善行而从 。
