Вопрос № 190472 - Английский язык

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The quality of 1_______ is known to depend on the properties of materials it consists of. The amount of constructing materials is also of great importance. Among the kinds of concrete used in 2_______ construction there are plain concrete and reinforced, or ferro-concrete. The usage of plain concrete is practically 3_______. As to ferro-concrete, it is mostly used for construction of foundations, 4_______, girders and beams. This kind of concrete is also rather popular for constructing bridges, dams and dock walls.

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The quality of concrete is known to depend on the properties of materials it consists of. The amount of constructing materials is also of great importance. Among the kinds of concrete used in modern construction there are plain concrete and reinforced, or ferro-concrete. The usage of plain concrete is practically limitless. As to ferro-concrete, it is mostly used for construction of foundations, columns, girders and beams. This kind of concrete is also rather popular for constructing bridges, dams and dock walls.
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The usage of what construction material is practically limitless?

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Building systems have a limited range of manufactured components.

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Building ventilation is done with operable windows.

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The first safe steam-powered roped elevator was designed in 1850.

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The properties of all building materials are similar.