Что сведетельствует о высокой степени развития цивилизации, изображённой в повести професия​

1) were to the history of construction  with the introduction of the railways and steam machinery, trans­portation and manufacturing costs considerably reduced and   concrete came to be more widely used, but it was still very much a neglected materia? - общий2) the big break-through was the discovery of portland cement by joseph aspdin in 1824, a worker in an english town, wasn't it? - разделительный3) what was first used on a large scale in the construction of the thames tunnel in 1828?   - специальный к подлежащему4) were patents taken out for all sorts of systems in all countries or cities? - альтернативный5) when has the post-war era given the biggest boost to concrete, both reinforced and prestressed? - специальный