Расположите пропущенные предложения в таком порядке чтобы получился связный текст Prestressed concre...: ответ на тест 800597 - Английский язык

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Prestressed concrete is a relatively young product. It started to be widely used only during the last few decades, and is still gaining popularity. 1 _______. The main good qualities of prestressed concrete are its high strength and durability. 2 _______. This combination is highly advantageous. 3 _______. For this reason any member of beam is under constant compression and as a result has no cracks.4 _______.

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Prestressed concrete is a relatively young product. It started to be widely used only during the last few decades, and is still gaining popularity. The reason of its popularity is its usefulness. The main good qualities of prestressed concrete are its high strength and durability. In prestressed concrete, concrete is combined with steel. This combination is highly advantageous. It serves the purpose of producing a compressed stress in the concrete as a building material. For this reason any member of beam is under constant compression and as a result has no cracks. In modern times this type of concrete serves as construction material for beams, for pipes, and columns, storage tanks, water towers and the like.
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The reason of popularity of prestressed concrete is …

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In fibre reinforced polymer bridge deck is a newly-invented arrangement. 1 _______. They are extremely useful since, because of their composition, they have a wide range of application. Compared with other conventional materials they can solve a much greater number of problems.
2 _______. The material it is made up of is very easy to transport. 3 _______. Holes are easily cut in the deck. 4 _______.

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Nails are generally made of plain steel. 1 _______. Practically, nails are sharpened metal pins driven into wood with a hammer or a mechanical nail gun. 2 _______. Among them common nails and finish nails are the two types most frequently used for fastening. 3 _______. The main property of finish nails is that they are headless. 4 _______.

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Finish nails are often the same length as common nails. 1 _______. Besides common and finish nails, there exists a great variety of other shapes. Face nail is a nail driven through a side of one wood member into the side of another one.
2 _______. It turns like a screw when it is driven with a hammer.
3 _______. Why are nails so popular in the process of construction? 4 _______. Another property that makes them so popular is that they are very simple to insert with a hammer or a mechanical nail gun.

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The first houses were merely shelters for the purpose of protecting their owners from weather and therefore were very simple – a roof to keep of the rain, and walls to keep out the wind. 1 _______. A little later each house had its fireplace and a masonry chimney. 2 _______. There was no water supply, no heating system, and no electric light. 3 _______. First, there was running water in the kitchen, then hot water and later fully equipped bathrooms.
4 _______.