21. In paragraph l, the word "facades" means________.
A.the exterior walls of a building B.the shape ofa building C.the interior walls ofa building D.the framework of a building正确答案A
21. In paragraph l, the word "facades" means________.
A.the exterior walls of a building B.the shape ofa building C.the interior walls ofa building D.the framework of a building正确答案A
