Вопрос № 800562 - Английский язык

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Practically every modern building is supplied with stairways of some kind. A stairway is designed to provide a means of access between different floor levels of a building. Nowadays stairways are produced of various construction materials but the most popular among them are timber and reinforced concrete. Of them timber may be used for domestic stairs of all kinds because of its economical availability. As to reinforced concrete it is popular because of its durable qualities, great resistivity to decay and great resistance to fire. It should be taken into account that domestic timber stairs must be designed for safe and comfortable use by people of different ages.
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What are the most popular materials for stairways nowadays?
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  • Nowadays the most popular materials for stairways are plywood and steel.
  • Nowadays the most popular materials for stairways are timber and reinforced concrete.
  • Nowadays the most popular materials for stairway are cement and aluminium.
  • Nowadays the most popular materials for stairways are wood and plastics.
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Вопрос задал(а): Анонимный пользователь, 13 Ноябрь 2020 в 01:37
На вопрос ответил(а): Анастасия Степанова, 13 Ноябрь 2020 в 01:37