![Chemicalpesticidesandartificialfertilisershavebeeninwid...]( "Chemicalpesticidesandartificialfertilisershavebeeninwid...")
- 问题详情：Chemicalpesticidesandartificialfertilisershavebeeninwidespreaduseinfarmingsincethemiddleofthe20thcentury.Whentheywerefirstintroduced,manyfarmerswelcomedthemasagreatwaytofightcropdiseaseandincreaseproduction.Overtime,however,whatsomescientists...
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