【简答题】A.The building method the builders use to save energy. B.The limit of the flow of air between inside and outside. C.The use of man-made building materials. D.The limit of air-flow and the man-made mat...
【单选题】听力原文:(A) The building has ten stories. (B) Flowers are in bloom near the building. (C) The statue is taller than the building. (D) The windows are arranged symmetrically.