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  3. Many experts who favor genetically modified foods believe that genetic engineeri

Many experts who favor genetically modified foods believe that genetic engineeri

游客2023-09-17  67
问题 Many experts who favor genetically modified foods believe that genetic engineering can help to meet the demands of the world’s increasing population. [br] It is much more difficult to ______ than to calculate the benefits of the GM crops.
选项
答案 define the environmental risks
解析 文章里谈到"Defining the environmental risks of GM crops seems even harder than calculating their benefits. At the moment, public attention is most trained on Bt crops thanks intensely"表明“管理当局也正积极评估基改作物的风险”。
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