Since the opening and reform, China national economy has got a continuous development and regis-tered an outstanding achievement. But more rapidly the economy de-velops, more serious the air pollu-tion in large cities...Since the opening and reform, China national economy has got a continuous development and regis-tered an outstanding achievement. But more rapidly the economy de-velops, more serious the air pollu-tion in large cities becomes. The Chinese government has展开更多
文摘Since the opening and reform, China national economy has got a continuous development and regis-tered an outstanding achievement. But more rapidly the economy de-velops, more serious the air pollu-tion in large cities becomes. The Chinese government has