According to the passage, what is one disadvantage of skyscrapers that have mirrored walls? ( )
提问人:杨丽梅发布时间:2019-09-19
A. The exterior surrounding air is heated. B. The building materials are very expensive. C. Construction time is increased. D. Extra air-conditioning equipment is needed.
1In the late l960s.many people in North America turned their attention to environmental problems,and ne
A. discuss the advantages and disadvantages of skyscrapers B. compare skyscrapers with other modern structures C. describe skyscrapers and their effect on the environment D. illustrate various architectural
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