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What does the professor mainly discuss? [originaltext] (12)In 1871 , the firs
What does the professor mainly discuss? [originaltext] (12)In 1871 , the firs
游客
2023-11-02
10
管理
问题
What does the professor mainly discuss?
(12)In 1871 , the first passenger elevators were used in office buildings and allowed architects to build higher than people could comfortably walk. Another innovation was in building technique. In 1885, the steel skeleton was introduced and allowed for the construction of tall buildings that could withstand high winds. We take for granted some of the other inventions that enabled people to live and work in skyscrapers. For example, few people realized that the telephone was necessary for vertical communication and that flush toilet and vacuum incinerator made waste disposal possible. Now, as we’ve entered the age of the super skyscraper, some with more than 200 floors, we see the need for even more technological innovations in the area of heating and cooling systems, for example. For all their benefits, these super tall buildings do cause problems though. For one thing, they place enormous strain on parking and traffic flow in urban areas.(13)But let’s leave behind these technical concerns and move on to consider some of the design elements that have come to characterize the age of the skyscraper.
选项
A、The development of the modern skyscraper.
B、The skyscraper’s effect on urban areas.
C、Problems with future skyscraper construction.
D、Safety regulations for skyscraper design.
答案
A
解析
主题总结题。本文按照时间顺序介绍了摩天大楼的发展情况:1871年电梯首次投入使用,随后建筑技术不断提高,电话、冲水马桶、吸尘器等也相继出现,使摩天大楼得到不断发展。所以正确答案为A。
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