10-A9
答案:EXPERIENCE
解析:这题是单表替代密码,用频率分析的基本方法得到明文如下:
Cinderalla has a stepmother and two sisters who are mean to her. one day, the prince wants to hold a dancing party to find a proper and beautiful girl to be his wife where he meets cinderalla and fall in love with her. The answer is experience. Finally,they live a happy life together after conquering so many difficulties.
答案就在文中“The answer is experience. ”这句。
P.S. 其实,原题是下面这样的,为了给后面的题目打铺垫,才改的