2. 外语
  3. The research suggests that people increase physical activity to a medium level and pay attention to the choices of their food an

The research suggests that people increase physical activity to a medium level and pay attention to the choices of their food an

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问题 The research suggests that people increase physical activity to a medium level and pay attention to the choices of their food and calorie intake to maintain ideal weight.
Because canned vegetables are processed within hours of being picked, they generally ______
选项
答案retain 70 to 90 percent of their nutrients
解析 文章倒数第五段最后一句话指出"Because canned vegetables are processed within hours of being picked，they generally retain 70 to 90 percent of their nutrients"．因为罐装食物是在被采摘下来几个小时后就加工的，所以保留了70%到90%的营养，由此可知此处该填retain 70 to 90 percent of their nutrients。
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大学英语四级

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