问题详情

The example of EIAL Airlines shows that_______.
A．revengeful customers are a threat to the monopoly d enterprises
B．an ad campaign is a way out for enterprises in financial difficulty
C．a good slogan has great potential for improving service
D．staff retraining is essential for better service此题为多项选择题。请帮忙给出正确答案和分析，谢谢！