A:知识经济
B:法制经济
C:诚信经济
D:发展经济
---Do you know Tan Dun?
---Of course. He is a famous composer and won ______Oscar for his music in the film Crouching Tiger, Hidden Dragon in 2001.
小敏上午8:00从家里出发,骑车去一家超市购物,然后从这家超市返回家中.小敏离家的路程y(米)和所经过的时间x(分)之间的函数图象如图所示.请根据图象回答下列问题: