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  3. Which of the following is not contained in the genetically modified maize? [br]

Which of the following is not contained in the genetically modified maize? [br]

游客2023-11-04  80
问题 Which of the following is not contained in the genetically modified maize? [br]  
A genetically modified (GM) maize fortified with three vitamins has been created by European researchers. The modifications make the growing maize, or corn, produce large amounts of [25B] beta carotene and precursors of vitamin C and folic acid.
    The development marks the first time any plant has been engineered to make more than one vitamin.
    The creators argue the crop could help improve diets in poorer nations, but anti-GM campaigners are skeptical.
选项 A、the genetically modified maize fortified with three vitamins has been created by American researchers.
B、no maize can produce more than one vitamin before.
C、the creators argue the crop could provide healthy diets for those seeking for weight loss.
D、all the engineers agree with this new product.
答案 B
解析 新闻说，这是第一次生产出包含1种以上维他命的玉米。这说明以前没有出现过这样的玉米，所以[B]正确。
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