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In recent years, there are more and more foggy days, it has brought a lot of inconvenience for physical and mental health of people. According to reports, there are many reasons to affect the weather, one of the reason is that the people burn straw, then do you know how harmful to burn straw? How should we prevent the straw burning? |
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School: Shaanxi Weinan City Lingwei Distract XIabang Town First Junior Middle School Email:sbpl338719@163.com Phone:0913-2950001 |