单词：vitamin-deficiency
单词：vitamin-deficiency 相关文章
Michael Irwig gives staff lectures on Vitamin D at George Washington University Hospital The U.S. Institute of Medicine is involved in a study that will likely result in an increase in the recommended daily intake of vitamin D. Research shows vitamin
VOA标准英语2010年(五)月
Dispute About Genetically Engineered Rice 关于转基因大米的争论 Scientists in the Philippines are working to make changes to rice. They hope these changes will help solve one of the worlds biggest health issues: the lack of Vitamin A. It is
2015年VOA慢速英语(四)月
People who do not get enough vitamin A in their diet may develop night blindness. But in the developing world a lack of vitamin A causes much more serious harm to children. The World Health Organization links vitamin A deficiency to as many as two hu
2011年VOA慢速英语(一)月
By Kari Barber Dakar 06 July 2007 After years of turmoil and economic hardship, the small West African nation of Guinea Bissau is facing a health challenge caused by the absence of iodine in the nation's diet. In countries where iodine is not already
2007年VOA标准英语（七月）
LOS ANGELES, March 3 (Xinhua) -- More and more American adults are suffering from a decline in overall sleep duration(持续时间), the U.S. Centers for Disease Control and Prevention (CDC) (疾病防治中心) said on Thursday. It's recommended tha
英语新闻
Apples contain fiber and vitamins while donuts are full of saturated fats and chemically processed ingredients. Even though apples are healthier for you, you have to eat more of them to get the same number of calories as one donut. 苹果含有纤维素
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