阅读判断。根据短文内容，判断下列句子的正与误。

Long long ago, there was no paper in the world. People had to write characters(汉字) in bamboo slips or stones.Then there was a man named Cai Lun who was a Chinese man. He made people use all kinds of things to invent paper. From then on, people can use paper to write on. Paper is a great invention. We always remember the great inventor Cai Lun. Nowadays paper is very useful in our work, study and our life.It really means a lot to human beings

如图，把A、B、C、D、M这5个部分用红、黄、蓝、白和黑5种不同的颜色染色，且相邻的部分不能使用同一种颜色，有的颜色也可以不用，那么这幅图一共有____ 种不同的染色方法．