考考你的课文理解能力，请根据课本P77 Lesson 62 Confidence的课文内容选择正确答案完成下列句子。

1.Peter stood ___ when his teacher talked to him.

A.at his desk  

B.inthe front of the teacher's desk  

C.in front of the teacher's desk  

D.at the back of the classroom

2.What are around many of the words Peter wrote?

A.A mark crossing.  

B.A square.  

C.Some black circles.  

D.Some red circles.

3.The word "____"was spelled "bot"by Peter.

A.bought  

B.but  

C.brought  

D.boilt

某企业甲责任中心将A产品转让给乙责任中心时，厂内银行按A产品的单位市场售价向甲支付价款，同时按A产品的单位变动成本从乙收取价款。据此可以认为，该项内部交易采用的内部转移价格是( )。

A．市场价格

B．协商价格

C．双重价格

D．以成本为基础的转移定价