选择下列句子完成下面对话。（共5小题，每小题1分）

A: Good morning. What can I do for you?

B: I want a mobile phone, but I don’t know which one to buy.

A: ________ 小题1: Which brand do you like best, an HTC, a Nokia or an iPhone 5?

B: I know little about them. Which one sells best?

A: Mm! ________ 小题2:

B: How much is the iPhone 5?

A: ________ 小题3:

B: Oh, they are too expensive. I want the one which is the newest but not too expensive.

A: What about this one? It works well and is very cheap.

B: ________ 小题4:

A: 1,000 yuan.

B: Is there any discount ( 折扣)? How about 800 yuan?

A: ________ 小题5:

B: OK, I’ll take it.

根据集团总部的集权分权程度，可以把总部对下属企业的管控模式分为（）。

A.操作管控型

B.战略管控型

C.市场管控型

D.财务管控型

E.资源管控型