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  3. Passage 2 The food we eat seems to have

Passage 2 The food we eat seems to have

恬恬2019-12-17  70
问题 Passage 2The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit toeat. some research has shown that perhaps eighty percent of all human illness are related to diet and forty percent of cancer is related to the diet as well, especially cancer of the colon. Different cultures are more prone to contract certain illness because of the food that is characteristic in these cultures.That food related to illness is not a new discovery. In 1945, government researchers realized that nitrates and nitrites, commonly used to preserve color in meats, and other food additives, caused cancer. Yet, these carcinogenic additives remain inour food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful.The additives which we eat are not all so direct. Farmers often give penicillin to beef and poultry, and because of this, penicillin has been found in the milk of treated cow. Sometimes similar drugs are administered to animals not for medicinal purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although theFood and Drug Administration （FDA） has tried repeatedly to control these procedures, the practices continue.The world ‘this’ in the second sentence of paragraph 2 most probably refers to ___.
选项 A. farmerB. penicillinC. beef and poultryD. the fact that farmers often give penicillin to a beef
答案D
解析
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