(由单选题和多选题组成。) 丁企业产品生产多年已处于成熟期，产品市场份额为10%。在该行业中位于前三名的企业市场份额分别为：甲企业40%，乙企业20%，丙企业15%。该行业市场稳定，但竞争也十分激烈，特别是甲企业为维持现有地位，对任何其他竞争对手的进攻都会做出迅速而有力的反应。丁企业知道这些情况，采取尽量维护现有市场的做法，主动与客户建立起了结构性关系，使客户对企业的服务形成无法通过其他途径弥补的依赖。通过这种做法，丁企业以优质的客户服务，获得了客户的认同，也维持了现有的市场。 请分析案例，并回答下列问题： 在产品的成熟期，丁企业实行的是( )型策略。
查看答案
This information is mainly about（）.
A. a computer game
B. an underwater game
C. how to use modem weapons on your enemies
D. an army training exercise
The word "media" in the first paragraph includes（）.
A. the press
B. television
C. radio
D. all the above
58（）
A. We’ve never had a big party in this apartment
B. Your father might agree with you
C. Do you mean the one that is near your father’s factory
D. What day is that
E. I’ll be so good that he won’t know I’m here
F. What date is that
G. However, we’ll have to talk to your father
H. What did he say
微信支付 
支付宝支付