The canal from Beijing to Hangzhou is the longest in the world,which is about 1800km.It connects Chang River,Huang River,and other 5 river.It also increase the economic an cultural develop from .
The canal from Beijing to Hangzhou is the longest in the world,which is about 1800km.It connects Chang River,Huang River,and other 5 river.It also increase the economic an cultural develop from .