数码管的动态显示需要有（）信号和()信号。

A. The American Dreammeans different things to different people.
B. for many, particularly immigrants,it means the opportunity to make a better life for themselves.
C. For ordinary people, it means a happy family, an ideal job, and a nice house.
D. For minorities and immigrants, it also includes freedom and equal rights.

A. To realize the great renewal of the Chinese nation is the greatest dream for the Chinese nation in modern history.
B. The China Dream has conglomerated the long-cherished aspiration of Chinese people of several generations
C. The China Dreamrepresents the overall interests of the Chinese nation and Chinese people
D. The China Dreamhas been a common expectation of every Chinese