many people say that they "don't spend enough time in the sun" and "their bone density is not high enough", so they need to supplement extra vitamin D; But some people also believe that supplementing too much vitamin D can cause harm...
根据Whenweareyoung,vitaminDbuildsupourbonesandmakesthemstrong.Whenweareolder,westillneedvitaminDtokeepourbonesstrong.可知,维他命D能使我们骨骼强壮。故正确答案为A。2.细节理解题。根据Butourbodiescan'tmakevitaminD.Sowehavetogetitfromoutsideofourbodies.可知,必须从体外获取维他命D是因为我们的身体不能产生维...
Food is not the only way our bodies can get vitamin D. The sun also gives us vitamin D. If we want to be healthy, we should spend some time in the sun each day. Too much sun is not good for you, but about 15 minutes a day is usually enough. And we should be sure to eat ...
C. not enough vitamin AD. vision problems3. According to the article, eye problems can be corrected by ___. A. wearing specially-made glassesB. performing eyes exercisesC. cutting back on televisionD. eating more carrots4. Watching too much television can cause ___....
Vitamin deficiency is the condition of a long-term lack of a vitamin. When caused by not enough vitamin intake it is classified as a primary deficiency, whereas when due to an underlying disorder such as malabsorption it is called a secondary deficiency. An underlying disorder may be metabolic...
Experts, however, say that sometimes vitamins can help prevent disease. People who know they lack a particular vitamin should take vitamin supplements. Some older adults, for example, may not have enough vitamin B-twelve. This is because, as people get older, their body loses its ability to ...
A A. Getting Enough Vitamins Through a Balanced Diet. B. Vitamin Supplements Do Harm to Our Health. C. Vitamins Are Important to Our Health. D. Lacking Vitamins Can Cause Many Diseases. 相关知识点: 试题来源: 解析 答案见上C【通篇解读】本文主要阐明了服用维生素补品事实上并不像人们想象...
根据“When we are young, vitamin D builds up our bones and makes them strong. When we are older, we still need vitamin D to keep our bones strong. ”可知,维生素D能够使我们的骨骼强壮。故选D。 (2)题详解: 细节理解题。 根据第二段中的“But our bodies can’t make vitamin D. So we...
D. to consult doctors before taking vitamin supple?ments 26. What would be the best title of the passage? A. Getting enough vitamins through a balanced diet B. Vitamin supplements do harm to our health C. Vitamins are important to our health D. Lacking vitamins can cause many diseases 下载...
Vitamin(维生素)D is called “sunshine vitamin,”and it is very important to health,yet more Americans are not getting enough,U.S.researchers said on Monday.Researchers found that 75 percent of Americans can’t reach the