Вопрос № 1072724 - Английский язык

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Various organs of livestock supply drugs used by a great number of people. Animal fat can be processed and made into livestock feed and soap. Manufacturers use the feathers of ducks and geese in making bedding. Every year, livestock produce tons of body wastes that are used to fertilize the soil. This organic fertilizer increases the growth and food production of many plants. Horses were once widely used as work animals on farms. But automated farm equipment has replaced horses for farm work in most parts of the world. Today, people use horses primarily for recreational riding and for racing.

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We are students of veterinary department. We study domestic animals. Domestic animals give us meat and milk. Collective farms have many animals. We must help collective farmers in their work.
The horse is a domestic animal. Our collective farm has horses. Horses work much, they do hard work. We must feed horses well. They must have grain and hay or grass. If a horse is ill, we must help it.

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Bacteria, unlike higher organisms, consist of a single cell only. Some of the bacteria possess thread-like appendices, so-called cilia, for purpose of locomotion. These cilia are fixed either at one end of the cell or are arranged over the whole surface of the cell. The size of the cells is microscopic. The pathogen is thus visible with the aid of microscope only. Bacteria multiply by simple fission. Bacteria diseases are usually caused by the penetration of bacteria into injured plant parts. By excreting certain chemical agents bacteria break up cell unions, loosen them or kill part of the cells.

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When America was discovered by white man, the Indians were collecting the juice of the hard maple, thus making maple syrup. 1_______.The production of maple syrup has been an industry since in the regions where hard maples are common, principally the northeastern United States.
2_______. By additional heating at about 120 C, a flavor can be developed. 3_______. Maple sugar is sucrose of about 90-95 % purity. 4_______.

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Farm tractors may be divided into two groups: wheeled and track-laying. 1_______.Standard wheeled tractors are used for general farm work and do not have the special features associated with row-crop tractors. 2_______.But in addition they are so specially designed for working on root.
Track-laying tractors have the great advantage that they can be used for heavy loads on almost any class of land. 3_______. But their greater initial cost and their maintenance may outweigh this advantage. The crawler is, however, the more efficient type of tractor. 4_______.

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Cow’s milk is about 38 % lactose or milk sugar. 1_______.Glucose and fructose are simple sugars found in many fruits and in honey. 2_______. Glucose is also made when starch is digested in the body and it is the chief form in which sugar is carried round the body as a sugar solution. Although sucrose is obtained from the stem of the sugar cane, much of it comes from the root of the sugar beet. 3_______.When it is digested, maltose turns to glucose, while sucrose turns to glucose and fructose. 4_______.