What are the three water transfer routes for the South-to-North Water Transfer Project, and which one is the route using Jingzhou Canal?

According to the analysis of reading pictures:

(1) The South-to-North Water Transfer Project is divided into three water transfer routes: east, middle and west. It is time-saving, labor-saving and money-saving to use the famous Beijing-Hangzhou (Grand Canal) as the main water conveyance channel in the east.

(2) The South-to-North Water Diversion Project is to transport the water resources of the Yangtze River system to North China and Northwest China, which are seriously short of water, so as to alleviate the water shortage problem in North China and Northwest China.

(3) The water diversion project in the figure can solve the problem of uneven distribution of water resources in China.

So the answer is:

(1) Beijing-Hangzhou (Grand Canal;

(2) the Yangtze River; North China; Northwest;

(3) Uneven regional (spatial) distribution.