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[originaltext] For many years, scientists have known that people need Vitamin
[originaltext] For many years, scientists have known that people need Vitamin
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2023-12-23
8
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问题
For many years, scientists have known that people need Vitamin D. Vitamin D helps the body use calcium to develop and strengthen bones and teeth. Studies show that lack of the vitamin is linked to an increased risk of broken bones. Extra Vitamin D may help prevent such breaks. Health experts have traditionally believed that short periods of sunlight each day could provide enough Vitamin D. This is because human skin changes sunlight into Vitamin D. The body then can store this substance.
Around the world, about one-hundred-sixty thousand children under age fifteen are found each year to have cancer. The researchers say eighty-four percent of these cases are found in developing countries. They say only ten percent of children with cancer in these countries survive and many more could be saved if their countries had the resources needed to find cancers and treat them. Children from industrial countries like Britain and the United States who develop cancer have a much better chance to survive.
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答案
在世界上,每年都会有约16万名15岁以下儿童被发现患有癌症。研究者发现这些病例中有84%发生在发展中国家。他们说在这些国家里只有10%的患癌症儿童能够存活。如果这些国家拥有必要的资源来发现和治疗癌症,更多的儿童能被救活。在英国和美国这样的工业国家里,患癌症儿童的存活机会就大得多。
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