【题文】Farmers use different kinds of soil conservation methods to protect their land from damage by farming and the forces of nature . One important form of soil conservation is the use of windbreaks . Windbreaks are barriers formed by trees and other plants with many leaves . Farmers plant...
根据第一段最后一句One important form of soil conservation is the use of windbreaks 可推断,风障是保护土壤最好的方法之一,故A描述正确;根据第二段最后一句They are very important for growing grains, such as wheat.直接判断B描述准确;由最后一段第一句There should be at least two lines in each ...
These movements will lift soil into the air where it will be blown away. 可知,风骤停,土壤会被吹走。故选A。 windbreaks can protect areas up to ten times the height of the tallest trees in the windbreaks可知,20米高的防风带可以保护200米的区域。故选B。 根据最后一段Windbreaks can protect ...
由第四段"If the wall of trees and plants stops wind completely...be blown away."可知风完全停下来的话,有些土壤还是会被刮走的,故选A。25.答案:B解析:推理判断题。由第五段第一句"An easy role to remember..in the windbreaks"可知防风林能保护的面积最大是它的十倍,,因为防护林为20米高,故答案...
Different kinds of soil conservation methods are used by farmers to protect their land from damage by farming and the forces of nature. One important form of soil conservation is the use of windbreaks. Windbreaks are barriers (屏障) formed by trees and other plants with many leaves. Farmers pl...
Farmers use different kinds of soil conservation methods to protect their land from damage by farming and the forces of nature . One important form of soil conservation is the use of windbreaks . Windbreaks are barriers formed by trees and other plants with many leaves . Farmers plant them in...
Farmers use different kinds of soil conservation methods to protect their land from damage by farming and the forces of nature . One important form of soil conservation is the use of windbreaks . Windbreaks are barriers formed by trees and other plants with many leaves . Farmers plant them in...
Farmers use different kinds of soil conservation methods to protect their land from damage by farming and the forces of nature . One important form of soil conservation is the use of windbreaks . Windbreaks are barriers formed by trees and other plants with many leaves . Farmers plant them in...
Farmers use different kinds of soil conservation methods to protect their land from damage by farming and the forces of nature . One important form of soil conservation is the use of windbreaks . Windbreaks are barriers formed by trees and other plants with many leaves . Farmers plant them in...
In this regard, effective agrotechnical moisture conservation methods are high-quality autumn non-moldboard processing of stubble backgrounds with maximum preservation of stubble on the surface and a mechanical method of weed control in a fallow field. The obvious disadvantages of existing ti...