Purchase a phony Diploma of the Higher School of Flissingen Zeeland quickly 【WhatsApp:+85262673797】 Online customization of various global diplomas, graduation certificates, degree certificates, transcripts, driver's licenses, qualification certificates and other documents, with global shippingPpSst注意防护!北京全市空气质量严重污染_腾讯新闻注意防护!北京全市空气质量严重污染新京报讯据北京市生态环境监测中心官网消息,截至12日10时,北京实时空气质量指数为500,污染级别为6级,已达严重污染标准。目前空气中的首要污染物为PM10。编辑刘佳妮