C: They used their hands. 相关知识点: 试题来源: 解析 C 考查句意理解和常识。题干句意:过去农民用什么种庄稼?根据常识,可知过去科技不发达,没有电脑和机器,农民用手种庄稼。可知选项C. 他们用手。符合题意。选项A. 他们用电脑。B. 他们用机器。均不符合题意。故选:C。反馈 收藏
Drones can also detect bacteria(检测细菌)that are harmful to crops in the air from a few kilometers away. Farmers can check the drones’ air samples(样本)and try to find ways to protect their crops before the bacteria get to them. Counting cattle When flying over cattle, drones can tra...
Contract farming can provide farmers with a reliable market for their products, but may also require farmers to follow specific guidelines and regulations set by the company. Crop Farmers: Crop farmers specialize in cultivating and harvesting crops such as grains, fruits, vegetables, oilseeds, and ...
Byline: Bill Cole Daily Herald Staff Writer Forget that "knee high by the Fourth of July"...Cole, Bill
You can deduct the costs you incur that are an ordinary and necessary expense of farming on Schedule F to reduce the profit—or increase the loss—on which you'll owe taxes. Some of the expenses that farmers commonly deduct cover the cost of livestock and feed, seeds, fertilize...
Drones can also check for bacteria that are harmful to crops in the air from a few kilometers away, so that farmers can try to find ways to protect their crops before the bacteria get to them.Water watchMost fields aren’t perfectly flat. There might be hills, slopes and holes. After ...
A.Drones can do some jobs related to farming.B.Drones are the most useful inventions.C.Drones can help farmers protect crops and cattle. 相关知识点: 试题来源: 解析 (1)细节理解题。根据第二段"Looking for sick crops"(寻找生病的作物)可知,无人机帮助农民寻找生病的作物。故选C。(2)细节理解...
8.What do the farmers do if the rivers are polluted? A.They can't use the water for their crops. B.They can use the water for their crops. C.They can make their crops grow well. 试题答案 在线课程 分析略 解答略 点评略 练习册系列答案 ...
In commercial beekeeping, naturally extracted honey doesn’t make them much money. It’s the contracts with the farms that need bees to pollinate their crops that make up significant revenue. Pollination is dependent on two different factors; insects or the wind. We wouldn’t have many foods ...
To make the situation worse, in many countries, negative government policies that make it unprofitable to grow crops have prevented farmers from toiling on their farmland. As far as college students are concerned, firstly, we should have an awareness of the severe current situation and inform the...