The need for an operation, especially an immediate operation, almost always comes as a

               to the patient and his family.[ ]

A. shock

B. surprise

C. pity

D. disappointment

“客户价值”“核心能力”，“合作网络”是______营销观念塑造市场的三大基本要素。

A．关系

B．全方位

C．基准

D．整合