Remember to eat your fruits and vegetables.They might just improve your memory.
    Scientists have found out several kinds of products—including vegetables which have green leaves，orange and red vegetables and orange juice，are good for memory.
    Researchers at Harvard University have found that men who insist on eating those fruits and vegetables over a period of 20 years were more likely to have better memory skills than those who seldom eat jye.aim.The study followed about 27，800 men in health care jobs over 20 years，and surveyed them on their diets and other health-related topics every four years.
    Toward the end of the study，the researchers started asking them questions about their memory：For example， "Do you have more trouble than usual remembering a short list of things，such as a shopping list？"or "Do you have more trouble than usual following a group conversation or a story in a TV program due to your memory？" A growing number of "yes" answers to such questions can mean their memory is declining（衰退），the researchers said.
    The participants were divided into five groups，based on how many servings（分量）of vegetables and fruits they got each day，from six servings in the healthiest group to just two servings.The six-serving eaters were 34 percent less likely to be forgetful.And the results were even better if the men happened to eat carotenoid-rich（富含胡萝卜素）vegetables，such as carrots and pumpkins.Besides，those who drank orange juice often were 47 percent less likely to become forgetful，compared with those who drank orange juice less than once a month.
    "Our studies provide further evidence that diet choices can be important to keep your brain healthy，" researchers said.

注：每题答案不超过5个单词。
（1）Where did the researchers come from？

Harvard University.

Harvard University.

（2）Did the people who often eat fruits and vegetables have better memories or worse memories？

Better memories.

Better memories.

（3）How many groups were the participants divided into？

Five.

Five.

（4）What are carrots and pumpkins rich in？

Carotenoid.

Carotenoid.

（5）Is it right that drinking more orange juice makes us forgetful？

No.

No.