China promete continuar a reduzir densidade de PM2,5

2017-10-24 09:55:15
 
(CPC)CHINA-BEIJING-CPC NATIONAL CONGRESS-PRESS CONFERENCE (CN)

(Xinhua/Li Xin)

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KEY WORDS: densidade,culas,polui,cidades,microgramos,concentra,objetivo,part,ministro,Xinhua
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