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Shoals of fish are able to move and turn in seamless formation by following
Shoals of fish are able to move and turn in seamless formation by following
游客
2024-10-18
14
管理
问题
Shoals of fish are able to move and turn in seamless formation by following simple rules that are like those used by car drivers, researchers say.
Some of the most【C1】______sights in nature happen when animals form【C2】______ groups and move together as if【C3】______. Earlier work has shown that fish in large groups make better decisions than【C4】______or small groups.
Many theories have been【C5】______ about how animals might communicate in order to【C6】______this. But now it appears really simple. The researchers【C7】______groups of two, four or eight mosquito fish in a square arena for five minutes【C8】______studied the movements of individuals in each group. The【C9】______of the swimming fish were fed into software which acts like many pairs of eyes to keep【C10】______ on the direction and speed of each fish in the school and【C11】______it responds to other fish around it.
As schools of fish rarely suffer from crashes or【C12】______, the rules they use could also【C13】______be applied to robotic systems to solve traffic problems. If a system could be【C14】______ where each car knew where each car was and they could respond to each other and communicate with each other, traffic problems【C15】______ be avoid.
The researchers used a technique called artificial neural networks to look for【C16】______ in the data. And it turns out the【C17】______ well-organized swimming that fish in shoals【C18】______is actually caused by each fish using very simple rules to respond to its neighbors. These rules include " accelerate towards a neighbor that is far away from you" and " decelerate when a neighbor is【C19】______ in front of you". It is also found that a fish only responds to a single nearest neighbor at any one time. Those【C20】______ to be the rules people use when they are driving. [br] 【C9】
选项
A、schools
B、activities
C、forms
D、images
答案
D
解析
名词辨析题。句意为:这些游动鱼群的影像被输入一种软件,它的作用就像是许多只眼睛追踪着群体中每条鱼的方向和速度以及它如何对周围的鱼作出反应。由上文中的提示,研究者们拍摄了鱼群游动的画面并进行研究,因此易选出images“画面,图像”。schools在这里可以表示“鱼群”,它和activities“活动”不能直接被录入电脑程序,故均排除;由上文可知,研究资料为拍摄的图像而不是表格,因此forms也应排除。
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