下列（）不属于需求开发活动。
A、需求获取 
B、需求分析 
C、需求验证 
D、需求管理

A．正确
B．错误

A．The demand curve for flower vases will shift to the left and their price will rise B
B．The demand curve for flower vases will shift to the right and their price will rise
C．There will be a movement along the demand curve for flower vases and their price will go down
D．The demand curve for flower vases will shift to the left and their price will go down