—I'm planning to open a restaurant in my hometown.________

—It might be a good idea to provide the best local dishes.[ ]

A. Could you give me some advice?

B. Would you please come for dinner?

C. You're most welcome.

D. Please pay attention to it.

下列最具有生物多样性的生态系统是（　　）

A．农田生态系统

B．城市生态系统

C．草原生态系统

D．森林生态系统