阅读下面短文,并结合课文内容补充所缺信息,每个空只能填写一个形式正确、意义相符的单词。

     Li Yundi, a (1)           Chinese pianist, always loved music. He was (2)           in 1982 in Chongqing. When he was a

small boy, he (3)             hum songs and difficult  (4)           of music. He began to learn the accordion at the(5)           of

four, and he started to learn the piano(6)           he was seven. In October 2000, Li Yundi(7)         part in the 14th Chopin

International Piano Competition in Poland. He (8)         first prize in his group. He was(9)           the first Chinese pianist

in the 70-year(10)           of the competition to win this prize.

两个被捕获的囚徒之间的一种特殊“博弈”，说明为什么甚至在合作对双方都有利时，保持合作也是困难的，这一状况被称作（）。

A、囚徒困境

B、蝴蝶效应

C、两难理论

D、科斯理论