Lati ọdun yii, agbegbe Yongnian nipasẹ igbega ti "awọn iṣẹ idinku idajade mẹjọ", gbe agbara ti gbogbo agbegbe lati gba didara afẹfẹ.Nitorinaa, itọka idapọpọ didara afẹfẹ jẹ 5.14, isalẹ 6.38% ọdun ni ọdun;Awọn ọjọ to dara 210 wa loke ite II, ilosoke ti 24 ...
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