The system for supplying water to farmers' fields is known as ______. (
A: articulation
B: liquidation
C: liquefaction
D: irrigation
A: articulation
B: liquidation
C: liquefaction
D: irrigation
举一反三
- Micro-irrigation is also known as (). A: A.basin irrigation B: B.infiltrating irrigation C: C.trickle irrigation D: D.spray irrigation
- The best irrigation water is river water, pond water and lake water A: 正确 B: 错误
- What should farmers do to construct the sandy fields?
- The chief causes of water shortage are ______. A: irrigation systems. B: massive dams. C: growth of planting. D: population growth and water pollution
- What is the unique system of underwater irrigation and drainage in Xinjiang Province?