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How has science done a disservice to mankind? What are nitrates used for?
How has science done a disservice to mankind? What are nitrates used for?
admin
2009-08-21
46
问题
How has science done a disservice to mankind?
What are nitrates used for?
选项
A、They preserve flavor in packaged foods.
B、They preserve the color of meats.
C、They are the objects of research.
D、They cause the animals to become fatter.
答案
B
解析
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本试题收录于:
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