以客户为导向的市场营销包括（）核心概念。

A.客户让渡价值

B.客户满意

C.客户评价

D.客户忠诚

E.客户关系管理

短文改错

It was my 18th birthday yesterday. As the age is special for our teenagers, so my parents held a birthday party for me at home. With my parents and some of my good friends attend my birthday party, I really had unforgettable experience. We sang songs, dancing and played games together. We all enjoyed ourselves very much. During the party, my parent told me that from then on I was no longer a child and an adult. They also said I should be more independent and responsibly. Hearing their words, I was greatly encouraged. It was just in that moment when I felt I was a grown-up