纵观中国上下五千年的光辉历史，分久必合，由分裂走向统一是历史发展的主流，是炎黄子孙共同的心愿，请阅读材料，回答下列问题。

材料一：

材料二：秦汉时期的中央统治者，为了有效地维系“大一统”，都对统治思想进行了选择，用以规范、整齐全国上下的思想。……（秦汉以后）即使是在分裂割据的年代里，追求统一仍始终是各族统治者和民众的共同政治理念和奋斗目标。──《“大一统”之梦》

材料三：三国鼎立形势图：

商家生产一种产品，需要先进行市场调研，计划对天津、成都、深圳三地进行市场调研，待调研结束后决定生产的产品数量，下列四种方案中最可取的是（  ）

补全对话(选择)。

A: Hello. Zhang Yu! ____

B: I'm reading a newspaper.

A: ____

B: Yes. There is a report about Zhou Yang.

A: ____

B: She is a player in China female short track speed skating team. ____

A: When and where was she born?

B: ____

A: Do you want to be a famous person like her when you grow up?

B: Aha, of course. So I have to work hard at school.

A: Well. You're a good student.

B: Thank you!

A. Who is Zhou Yang?

B. What's your hobby?

C. She was born in Jilin Province on June 9^th, 1991.

D. What are you doing now?

E. She won the gold medal in the 2014 Winter Olympic Games in Sochi.

F. How do we succeed in life? Is she from China?

G. Is there anything new on it?

图为“我国南水北调东线工程示意图”， 关于南水北调东线工程的叙述，正确的是（    ）