将下列句子排序，使之成为一个完整的对话。

A. Who is your music teacher?                

B. My favorite subject is PE.  

C.  Because it's fun.  What about you?        

D. What's your favorite subject?

E.  I don't like PF. I like music.                  

F. Why do you like P F?

G. Miss Green.                              

H.  Yes, we like her very much.

I. Yes, she is really a good teacher.              

J.  Do you like her?

K. Is she funny?

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根据技术活动过程所处的阶段，下列不属于技术活动所属的阶段的是（）。

A.技术研发风险

B.技术创新风险

C.技术应用风险

D.技术设计风险