市场营销观念的演变包括的阶段有( )。

A．生产观念和产品观念

B．销售观念

C．服务观念

D．市场营销观念

E．社会营销观念

补全单词。

1. What's the m _____ with you, Tom?

2. I'm so t _____ because it's hot today and I walked for a long time.

3. Look! A boy is l _____  (lie) on the grass and looking at the sky.

4. I have to see the dentist because I have a t _____ .