###The answer of SICP
I am reading the book SICP now and have done at least 90% exercises.
After a deep learning of it, I think I begin to love scheme gradually.
I love scheme because it's simple and magic, sicp has opened a new door for me.
If you are a Chinese, you can visit my blog.There are some articles about scheme.
Some of the exercises are too complicated to answer in English, I will answer them in Chinese.
对于难以用英文解释清楚的题目，我采用中文进行解释。
So I hope you may love scheme just like me.
Enjoy it and have fun!