2. Milk, oily fish and eggs all contain vitamin D.
牛奶、油性鱼类和鸡蛋全都含维他命D。
《柯林斯英汉双解大词典》
3. Lack of vitamin D is another factor to consider.
缺乏维生素D是另一个需要考虑的因素。
《柯林斯英汉双解大词典》
4. Vitamin D is necessary to aid the absorption of calcium from food.
从食物中吸取钙需靠维生素D的帮助。
《牛津词典》
5. This special form of vitamin D is naturally present in breast milk.
这种特殊形式的维生素D天然存在于母乳中。
《柯林斯英汉双解大词典》
6. D is for dry.
D是干燥的意思。
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7. Please complete the summary of paragraphs C and D below.
请完成下面C和D段的总结。
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8. Foods such as eggs and oily fish are all rich in vitamin D.
鸡蛋和油性鱼等食物都富含维生素D。
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9. DDay is celebrated to memorize the Normandy landings in France on June 6, 1944.
D日是为了纪念1944年6月6日在法国的诺曼底登陆。
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10. Three other types of airspace, Classes D, C and B, govern the vicinity of airports.
其他三种领空，D、C和B类，管理着机场周围地区。
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11. Schwarzenegger signed the bill, SB-54 by Senator Mark Leno (D), on Sunday, his office said.
其办公室称，施瓦辛格周日在参议员马克·莱诺(D)签署的SB-54法案上签字。
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12. For Vitamin D, the best examples are fish, mushrooms and eggs and for vitamin E, nuts and seeds.
关于维生素D，最好的例子是鱼、蘑菇和鸡蛋，而维生素E 则是坚果和种子。
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13. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听到问题后，必须从A、B、C、D四个选项中选出最佳选项。
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14. In the A, B, C, D and F grading system, the first four letters are typically considered passing grades.
在A、B、C、D和F评分体系中，前四个字母通常被认为是及格。
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15. Skin color, where you live and how much skin you have exposed all affect how much vitamin D you can produce.
皮肤颜色、生活地点和暴露在外的皮肤面积大小，都会影响你的身体所能产生的维他命D的量。
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16. Idleness is not just a vacation, an indulgence or a vice; it is as indispensable to the brain as Vitamin D is to the body.
懒惰不仅仅是度假、放纵或恶习；它对于大脑就像维生素D对身体一样不可或缺。
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17. Vitamin D, or calciferol, is another fat-soluble steroid vitamin that functions to stimulate calcium uptake from the gut and its deposition in bone.
维生素D，或钙醇，是另一种脂溶性类固醇维生素，其功能是促进肠道吸收钙并强化骨骼。
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18. Vitamin D, or calciferol, is another fat soluble steroid vitamin which functions to stimulate calcium uptake from the gut and its deposition in bone.
维生素D，或钙醇，是另一种脂溶性类固醇维生素，其功能是促进钙从肠道吸收并沉积在骨头中。
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19. At Wayne State University Medical School, surgeon Lucia Zamorano takes images of the brain from computerized scans and uses a computer program to produce a 3-D image.
