用正确的形式填空，首单词已给出。

     Jim was traveling by train. He was very (1) h______. The train stopped at a small (2)s______. He

wanted to buy a cake to eat very much, but it was (3)r______ hard. He wanted (4)s_______ to help him. A little boy coming over to him. Jim (5)a______ the boy to buy cakes for him. He gave the little boy one

yuan and said:“Go and buy two cakes with the (6)m______. One is for me, the (7)o_____ is for you. Can you help me?”

     The little boy was very (8)h______ and ran to buy cakes in the rain. A few (9)m_______ later the boy came bake and said,“I’m (10)s____. I’m eating the last cake. It’s delicious. Thank you very much. Here’s your 50 fen.”

股票内在价值的计算方法模型中，下列哪种假定股票永远支付固定的股利：（）。

A.现金流贴现模型

B.零增长模型

C.不变增长模型

D.市盈率估价模型