题目内容:
Accordingtothepassage,whatisonedisadvantageofskyscrapersthathavemirroredwalls?
A.Theexteriorsurroundingairisheated B.Thebuildingmaterialsareveryexpensive
C.Constructiontimeisincreased
D.Extraair-conditioningequipmentisneeded
参考答案:
答案解析: