下列关于马克思主义的说法,不正确的是( )。
A. 马克思主义是科学真理
B. 马克思主义具有持久生命力
C. 马克思主义以改造世界为己任
D. 马克思主义不适合当代世界
After-sales services are all processes that come ______ the act of selling itself.
A. after
B. before
C. on
after-sales service是______
A. 售前服务
B. 售中服务
C. 售后服务
But despite being essential for customer loyalty, after-sales service is a step that is______ neglected by most entrepreneurs.
A. never
B. seldom
C. often