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
D
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?
内容
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Farmers use water in many ways.（） they use water to grow crops. A: In fact B: For example C: Besides D: Because of thi
- 1
The first step of starting a cold ship is . A: Start emergency generator B: Starting cooling water system C: Start the compressed air system D: Start the daily fresh water system
- 2
The first paragraph mainly talks about ______. A: the problems caused by river water B: the necessity to irrigate the field C: the water shortage in some countries D: the canals carrying water to fields
- 3
It's known to us all _______ a form of energy . A. water is B. that water is C. is water D. that water to
- 4
Fishermen from ________ and farmers from Guangzhou were the first known settlers in Macao.