客户分析是客户关系管理的首要环节,其关键是分析客户的()
A.终生价值
B.潜在价值
C.历史价值
D.当前价值
参考答案:A
The speed limit for bicycles on campus is 15 mph, ___________ otherwise posted.
A.unless
B.until
C.since
D.however