Вопрос № 911964 - Английский язык

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Protein is a component of every body cell and important for building the maternal blood supply. Protein also is necessary for fetal hair, skin, muscle, nerve tissue and brain development. Women need approximately 10 more grams of protein daily – a total of 60 grams a day – during the pregnancy.

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Anemia signifies a decrease in the number of circulating red blood cells. It may be due to blood loss (open or hidden bleeding) or increased blood destruction (in the spleen), to faulty nutrition (e.g. lack of iron in the diet), poisons that depress the activity of the bone marrow, or other causes. Bone marrow, which makes blood, may be injured by heavy metal poisoning and some drugs, overdoses of X-ray, and tumors.

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Folic acid is a vitamin important in protein metabolism, particularly in periods of rapid growth. Pregnant women should start the day with a good breakfast. Fortified ready-to eat cereal with milk and a glass of orange juice will provide at least half needs. Green leafy vegetables, liver and lentils are other good sources of folic acid.

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1_______. If all the carbon and carbon compounds were suddenly removed from the earth it would look like the surface of the Moon. 2_______. In an ordinary pencil, for example, the inside of the pencil made from graphite, which is an elementary form of carbon, the wood and the paint on the surface of the pencil are all carbon or carbon compounds. The paper of a book, the cover are also made of carbon compounds. All of the clothes one wears including shoes cannot exist without carbon. 3_______. Fuels, foods and many drugs are mostly made of carbon compounds. 4_______.

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1_______. Although there are 89 other naturally occurring elements, the number of known carbon compounds is many times greater than that of the known compounds which contain no carbon. 2_______. The name “organic” comes from the past when chemical compounds produced from ones-living matter were called “organic” and all other compounds were called inorganic.
3_______. Every month several hundred new organic compounds are prepared. 4_______.

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1_______. Most, however, become laboratory findings and for the present, at least, have no practical application. 2_______. The million or so organic compounds now known and characterized were synthesized in the laboratories of the world in the past 150 years.
3_______.
Many other organic compounds are prepared from these materials after they are separated into their constituents. 4_______.