中国宫殿建筑布局主要体现在（）。
A.严格的中轴对称
B.左祖右社
C.前朝后寝
D.多装饰物
参考答案：A, B, C
-Have you ever been to Shanghai, Mary?
-Yes. I __________there for three days with my parents last month,[ ]
A. have gone
B. have been
C. gone
D. was
什么是转向盘自由行程？有何作用？
