优化设计一般是在设计阶段进行的，包括初步设计技术设计施工图设计阶段。优化的内容有（）。

A．整个项目设计方案的优化

B．项目局部设计方案的优化

C．项目局部结构设计优化

D．项目建设规模方案的优化

E．项目工艺流程方案的优化

读对话判断正(√)误(×)。

Goat: What's the city like?

Panda: It has a lot of things.

Goat: Are there any tall buildings?

Panda: Yes, there are.

Goat: Are there any rivers in the city?

Panda: No, there aren't.

Goat: Are there any mountains?

Panda: No, there aren't. But there are many cars and buses.

( ) 1. There are many tall buildings in the city.

( ) 2. There is a bridge in a river.

( ) 3. There are not any mountains in the city.

( ) 4. There are many buses and cars in the city.