What cows constitutes high percentage in the total cows butchered each year? What can we infer from the last paragraph?

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问题 What cows constitutes high percentage in the total cows butchered each year?
What can we infer from the last paragraph?

选项 A、USDA didn’t confirm product safety as quickly as British officials.
B、Shares in McDonald were not affected by people’s fear at the beginning.
C、Recovery 6f McDonald shows people believe what they eat is safe.
D、Cattle will not have BSE if they are fed well and butchered properly.

答案C

解析 根据最后一段的第二句话可知麦当劳的份额开始急剧下降,但是当其强调说自己用了非常严格的标准来控制食物的安全之后,份额就又恢复了。这说明人们相信他们所吃的食物是安全的。根据本段第一句可知美国农业部和肉类产业的官员们和当初的英国官员一样迅速的向美国人民担保他们的产品是安全的,故可排除A;根据本段第二句前半句可知麦当劳的份额在开始的时候急剧下降,故可排除B;根据本段无法推断出如果牛喂得好并规范屠宰的话就不会得疯牛病,故可排除D。
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