我们需要一个形容词来描述“sunlight”,并且这个形容词要与“直接的”意思相符。在中文中,“直接的”对应到英文中通常使用“direct”这个形容词。因此,正确的填空应该是“direct”。完整的句子为:Getting vitamin D from direct sunlight is far from enough.这句话的意思是:“从直接的阳光中获取维生素D是远远不够...
The easiest way to get vitamin D is from sunlight. The sun's ultraviolet rays react with skin cells to produce vitamin D. But many people worry about getting skin cancer and skin damage from the sun. As a result they cover their skin or wear sunblock or stay out of the sun.Also, ...
4.What can we infer from the text? A.Being exposed to sunlight is the safest way to get vitamin D B.Lack of vitamin D can make people age quickly C.Proper vitamin D levels people need are still not determined now. D.The vitamin D level is higher in men than in women.相关...
F. Holick (2010) Holick's rule and vitamin D from sunlight. J. Steroid Biochem. Mol. Biol. 121, 328-330.Dowdy J.C. , R.M. Sayre, M.F. Holick., 2010. Holick' s rule and vitamin D from sunlight. J. Steroid Biochem. Mol. Biol., doi:10.1016/j.jsbmb.2010.004.002....
基础闯关根据汉语提示以及括号内单词的适当形式填空。1. Getting vitamin D from(直接的)sunlight is far from enough.2. No matter what your(地址) are, Chin a Post can always deliver letters to you.3. It's our traditional culture for the young to speak/_(礼地) to the old.4. Thinking ...
"Until now it has been assumed that sunlight would provide the vitamin D needed by most of the population all the year round. We now know this is not true because about one in five people in the UK have a low blood level of vitamin D," said Prof. Hilary Powers from the University ...
Vitamin D gets produced when animals are exposed to direct sunlight,for ___ reason,it is always advisable to give them chances to spend time in the sun.( )A.whoseB. thatC. whichD. its 相关知识点: 试题来源: 解析 本题考查定语从句.分析句意和成分可知这里使用介词短语for this reason,因...
百度试题 结果1 题目Vitamin D is synthesized in the ( ) from the action of sunlight.( ) A. kidney B. blood C. skin D. finger 相关知识点: 试题来源: 解析 C 反馈 收藏
Thisiswe call vitamin D the “sunshine vitamin”. 答案 8.why句意为:晒太阳能够促进我们的皮肤分泌维生素D。这就是为什么我们称维生素D为“阳光维生素”。分析句子结构并结合句意可知,此处引导表语从句,表示“为什么”,故填why。 结果二 题目 8. Exposure to sunlight produces vitamin D in our skin. This...
Vitamin D is the sun vitamin. We get it in milk and eggs and from sunlight on our skin (皮). There are other Vitamins, but these A, B, C and D, are the most important.【小题1】There are many kinds of vitamins, the most important of which are ___. A.Vitamin A B.Vitamin...