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  3. Scientists have discovered 14 kinds of vitamins. If we do not get enough of

Scientists have discovered 14 kinds of vitamins. If we do not get enough of

游客2023-10-06  49
问题     Scientists have discovered 14 kinds of vitamins. If we do not get enough of the vitamins we need, we are at risk of developing a number of diseases. Scientists also find that it is better to eat vitamin-rich foods to prevent disease instead of eating them to cure a disease after it has developed. Which foods should be eaten to keep us healthy? Let us look at some important vitamins for these answers.
    Vitamin A helps prevent skin and other tissues from becoming dry. People who do not get enough vitamin A cannot see well in darkness. Vitamin A is found in fish liver oil and the yellow part of eggs. Vitamin C is needed for strong bones and teeth. The body stores little vitamin C, so we must get it in foods such as fruits and tomatoes. Vitamin D prevents the children from getting rickets (佝偻病). In some countries, milk producers add vitamin D to milk so children will get enough. Vitamin K is needed for healthy blood. It thickens the blood around a cut to stop bleeding (流血).
    Experts agree that everyone needs vitamins so that their bodies can operate normally. They also note that taking too much of some vitamins can be harmful and people should discuss what vitamins they need with their doctors. [br] According to the passage, experts agree that______.
选项 A、it is better to eat vitamins to cure a disease after it has developed
B、everyone needs vitamins to keep the body operating normally
C、the body stores a lot of vitamins so we do not need to take vitamins
D、the more vitamins we eat, the healthier we are
答案 B
解析 细节辨认题。本题考查四项内容中哪个是专家所认同的观点。其中B)是对最后一段首句的同义转述，即人需要维生素维持身体正常运转。
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