Vitamin A status assessment methodsKey Points Vitamin A plays an important role in a multitude of biological functions including normal vision, growth and development, and immune defense. Prevention of vitamin A deficiency would improve the health of infants particularly through improvements in their ...
Immune health:Yourimmune systemis a complex collection of different cells that keep you healthy. Vitamin A plays an important role in helping these cells communicate and fight germs and infections. Reproductive health:Vitamin A helps prevent birth defects and reduces the risk of infertility. Skin he...
答案见上10.C 句意:这可能说明,维生素E在预防(疾病)方面 发挥着重要作用,但不能治愈疾病。 根据“...that vitamin E plays an important part in prevention, but cannot cure diseases.”可知,此处是科学研究的结论,因 此用 turn out,指表明、证明。 run out 用光; find out 找出;stay out待在外面。
考查动词短语。run out 用光;find out找出;turn out 证明是;stay out 待在外面。根据“...that vitamin E plays an important part in prevention, but can not cure diseases."可知此处是科学研究,因此是表明、证明。故选C。 反馈 收藏
B. vitamin D plays an important role in a child's blood C. sunshine is one factor in gaining vitamin D for a human D. the darker your skin is the more vitamin D you'll get3. The best title for the passage would be ___.A. ...
Because of its susceptibility to oxidation, Vitamin A is frequently used as a marker of vitamin activity loss in premixes and feed. Vitamin E – a natural antioxidant – plays a critical role in managing free radicals produced during regular cellular processes. Deficiency in Vitamin E has been ...
根据上一句vitamin D plays a key role in many important body functions.可知维生素D在许多重要的身体功能中起着关键作用。空格后一句说缺乏维生素D所带来的严重问题,故本题选G,我们需要满足维生素D的需求,以避免严重的健康问题。故选G。【2】根据本段副标题和本句后一句Cow milk provides your body with about...
vitamin D isn't present in great amounts in a healthy body B. vitamin D3 plays an important role in reducing the risk of developing common cancers C. taking 1 ,000 IU of vitamin D3 daily is considered to be proper D. eating more than 2,000 IU a day will lead to damage to the...
Another amount of retinol is even more strongly fixed by a binding which can only be broken by saponification. Casein plays an important role in stabilizing retinol which does not degrade over time or during heat treatments. In vivo , when the retinol availability is measured by the vitamin A...
It may ___ that vitamin E plays an important part in prevention,but can not curediseases.( )A.run outB.find outC.turn outD.stay out 答案 run out用完;find out查明;turn out结果是;stay out待在外面;根据句意,可能___是维生素E在预防疾病上有重要作用,但不可以治病,可知此处用turn out,表示"...