A noise generating device (1) for scaring away animals such as birds over a large area or initiating avalanches. The device includes an enclosed combustion chamber (2) having a single exit opening (3) and two inlet valves (9), an element for introducing a combustible material such as ...
百度试题 结果1 题目If you make a noise you'll scare ___ the birds.相关知识点: 试题来源: 解析 答案:away 反馈 收藏
One popular management tool is to scare birds off the land, often in association with shooting. However, the energy costs of flying are considerably ... BA Nolet,A Kölzsch,M Elderenbosch,... - 《Journal of Applied Ecology》 被引量: 13发表: 2016年 Urban Birds of Prey: A Lengthy Hi...
When birds make noise, it's not always with their throats. In hummingbirds (蜂雀), for example, special feathers flutter and vibrate to produce tones and whistles, which impress potential mates and scare off competitors. Now researchers have found that pigeons use wing noise to warn the f...
He began to lecture us about making too much noise. There was too much noise in the room and he needed peace. Is this room soundproof? You know, I couldn't stand too much noise. There is too much noise in this class. Don't make too much noise or you'll scare away the birds. ...
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Why are some birds reducing the complexity of their songs? A. To send their voices further. B. To keep themselves better hidden. C. To make their messages better received. D. To stand out from other animals' sounds.( )2. What does the study show according to Hansjoerg Kunc? A. ...
cats can help .They kill small animals such as rats or mice .Some people do not want cats around however .They like to watch birds in their yards .Cats may kill the birds or scare them away .Cats can also be a problem in cities .In Rome ,for example ,tho...
They sell me that thing we just talked about They pull the string back and i make a noise We're only toys it's only noise It's getting louder it's only words It's only gun shots they use to scare the birds I put my hands on my ears I keep my poise ...
concerns about the datacenter, such as conservation group An Taisce, which said it's happy Apple intends to rely entirely on renewable energy, but wants the company to incorporate the sourcing of this power from the start of the project, and temper night-time lighting to avoid imp...