Some people believe that authorities need to plan for more vertical cities with really tall buildings since our land for the expansion of cities is limited. What are the advantages and disadvantages, in your opinion, of vertical cities that have really tall buildings and everything within these buildings?
限时练习
趁题目在眼前,限时写一篇
按考试时间写完,就知道自己在四项评分标准上各差在哪。
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