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Вопрос № 1072722 - Английский язык

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At the dawn of history we find man practicing the most elementary methods of modifying soil conditions. He broke up the surface and prepared a seed-bed, using for this purpose the most primitive of all cultivating devices, a digging implement like a hoe. In early times the principal crops were cereals and flax.
By the 19th century such a complexity of implements had been introduced as to justify the term «agricultural machinery». In agriculture, as in industry, the use first of water-power and then of steam had immensely stimulated the invention of machinery or replacing manual labour.  A threshing-machine was invested late in the 18th century and was gradually coming into use early in the 19th. It was driven by water or wind, sometimes by horse labour and later by steam. The mowing-machine, the self-binder and the potato-digger had been developed in the first instance for horse or manual labour.
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What stimulated the invention of machinery?
Варианты ответов
  • The use of a digging implement did.
  • The use of water-power and of steam did.
  • The use of a threshing-machine did.
  • The use of the mowing-machine, the self-binder and the potato-digger did.
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Вопрос задал(а): Анонимный пользователь, 13 Ноябрь 2020 в 18:15
На вопрос ответил(а): Анастасия Степанова, 13 Ноябрь 2020 в 18:15

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Вопрос № 1072265

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At the beginning of the 20th century mechanization of such basic processes as ploughing, sowing, grain-harvesting was still by no means complete. Now we can say that it is. The thing now is the full-scale mechanization of jobs requiring more intricate machinery, such as harvesting of sugar-beets, cotton, mowing of hay crops, silaging and livestock care. Today our collective and state farms are able to obtain high yields of crops and animal produce because they work in close contact with science. At the dawn of history we find man practicing the most elementary methods of modifying soil conditions. He broke up the surface and prepared a seed-bed, using for this purpose the most primitive of all cultivating devices, a digging implement like a hoe. In early times the principal crops were cereals and flax.
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Вопрос № 133397

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Scientists consider that the oldest tools are known to the mankind are 2,600,000 years old. They were used by people in manual operations and that is why they were called hand tools. By the beginning of the Industrial Revolution, people had already devised simple hand tools for cutting and shaping materials. But in the 18th century there appeared machine tools that made mass production a reality in the 19th century.
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Where were the tools used and how were they called?
They were used in manual operations and were called machine tools.
They were used in machine operations and were called machine tools.
They were used in machine operations and were called hand tools.
They were used in manual operations and were called hand tools.

Другие вопросы по предмету Английский язык

Вопрос № 1072723

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The Roman Empire began as a country of small farms on the Italian peninsula before 500 B.C. By the A.D. 200s the Romans had developed new farming methods, e.g. systems of crop rotation. The selective breeding of plants and livestock began in Europe during Roman times, too. During the Middle Ages European farmers invented a three-field system of crop-rotation during the Middle Ages. In many areas, it replaced the Roman two-field system. On most European farms horses gradually replaced oxen as the chief source of power. Many special-purpose livestock breeds were developed.
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Вопрос № 1072724

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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. 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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Вопрос № 1072725

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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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Вопрос № 1072726

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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_______.
The practice was quickly accepted by the new settlers
Research has disclosed the curious fact that the maple flavor does not exist in the sap but is developed by heating it
Maple syrup so produced is of special value for adding flavor to the less expensive products of the sucrose industry
The delicious flavor makes only a small percent
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