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  3. One of the simple pleasures of a lazy summer day is to be able to enjoy a refreshing slice of watermelon either at the beach, at

One of the simple pleasures of a lazy summer day is to be able to enjoy a refreshing slice of watermelon either at the beach, at

admin2012-06-26  29
问题     One of the simple pleasures of a lazy summer day is to be able to enjoy a refreshing slice of watermelon either at the beach, at a picnic, or fresh from the farmer’s market. Delicious and nutritious, watermelon is one of those guilt-free foods we can all enjoy: one cup of watermelon packs only about 50 calories! Watermelons are not only cooling treats for when the mercury starts to rise; they are also loaded with healthy nutrients such as vitamin A, vitamin C, lycopene (番茄红素 ), and etc. Vitamins A and C and lycopene are antioxidants, which are substances that work to help get rid of the harmful effects of substances.
    Research has suggested that a diet high in fruits and vegetables that have plenty of antioxidants can reduce the risk of heart disease, some cancers, and some other dangerous diseases. A cup of watermelon provides 25% of the recommended daily value of vitamin C and 6% of the recommended daily value of vitamin A. Additionally, researchers have found that lycopene, a nutrient most traditionally associated with tomatoes, is found in equal or greater quantities in watermelon.
    Watermelons also provide significant amounts of vitamin B6 and vitamin B1, both of which are necessary for energy production. In combination with the minerals and vitamins already described, these B vitamins add to the high nutrient richness of watermelon. Due to its high water content (watermelon is 92% water by weight) and low calorie count, watermelon is a good choice to satisfy your hunger while you try to eat a healthy diet. Think of them as nature’s answer to the heavily marketed "vitamin water" craze.
    Besides the textured, watery flesh of the fruit, watermelon seeds are also widely eaten as a snack. They are rich in iron and protein and are often pressed for oil or roasted and seasoned.
    So if you are planning on dining outdoor this summer, or simply looking for a quick and convenient refreshment to serve to unexpected company or reckless children, reach for watermelon. The kids will enjoy its crisp taste and messy juices, the adults will enjoy its refreshing flavors, and everyone will benefit from its nutritious value.
How many cups of watermelon can satisfy the daily need for vitamin C?
选项 A、1.
B、2.
C、3.
D、4.
答案D
解析
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