题目内容
【题目】这使空气、土壤、水和农作物免受化学物质的污染。
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【答案】见解析
【解析】This also keeps the air, soil, water and crops free from chemicals.
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题目内容
【题目】这使空气、土壤、水和农作物免受化学物质的污染。
_____________________________________________
【答案】见解析
【解析】This also keeps the air, soil, water and crops free from chemicals.