What does the professor mainly discuss? [br] [originaltext] (12)In 1871 , th

游客2023-11-02  34

问题 What does the professor mainly discuss? [br]  
(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、Measures designed to solve problems caused by super skyscrapers.
B、Design features of modern skyscrapers.
C、Strategies for reducing traffic congestion.
D、Methods of estimating construction costs.

答案 B

解析 语义理解题。根据句(13)可知,先不去管技术的问题,转到设计的问题上去,因此可以推断答案为B。
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