首页
登录
职称英语
[originaltext] Lionfish are known for their beauty and unusual look. But lio
[originaltext] Lionfish are known for their beauty and unusual look. But lio
游客
2024-03-09
64
管理
问题
Lionfish are known for their beauty and unusual look. But lionfish are also poisonous, with extremely long and separated spines to carry and shoot poison. The native environment for lionfish includes the South Pacific and Indian Ocean.
However, sea experts say lionfish were at some time released into the Atlantic Ocean, likely by people who had kept them in tanks. Lionfish are currently considered a great threat to coral reefs and related sea life in coastal waters of the southeastern United States and Caribbean.
Scientists say the fish is a top predator that competes for food and space with native fish in the area. Now there is a new solution for fighting back.
University researchers are developing an underwater robot to hunt down, kill and collect lionfish.
A student-led team at Worcester Polytechnic Institute in Massachusetts developed the robot. The team recently demonstrated the device and is continuing to test and make changes to it.
The team says that the robot is designed to recognize the lionfish, chase it and shoot the animal with a spear, which then separates from the robot and floats the fish to the surface for collection. Craig Putnam is a computer science professor at Worcester Polytechnic Institute and a director of the school’s Robotics Engineering Program. He says the robot was built to simplify the process of hunting down and collecting this aggressive fish.
Putnam said his team trained the robot system by showing it thousands of images of lionfish in different colours, from many directions and under different lighting conditions. The robot can correctly identify lionfish about 95% of the time, he added.
Questions 12 to 15 are based on the passage you have just heard.
12. What does the speaker say about lionfish?
13. What are lionfish doing to the Atlantic Ocean?
14. What can we learn about the team that developed the robot?
15. How did the team train the robot system to hunt down the lionfish?
选项
A、By putting it into a tank full of the fish.
B、By remote-controlling it to attack the fish.
C、By showing it thousands of images of the fish.
D、By equipping it with a sensing device.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3518232.html
相关试题推荐
[originaltext]Havingsuccessandbeingabletomeetone’sgoalsrequireskn
[originaltext]Havingsuccessandbeingabletomeetone’sgoalsrequireskn
[originaltext]Researchsubjectswhohavelivedwithlimitedhumancontacts
[originaltext]Fear,anger,hateandsadnessarefouremotionsthatcanaffe
[originaltext]Fear,anger,hateandsadnessarefouremotionsthatcanaffe
[originaltext]Fear,anger,hateandsadnessarefouremotionsthatcanaffe
[originaltext]Lionfishareknownfortheirbeautyandunusuallook.Butlio
[originaltext]ParticipantsinGirlsonRockgettoexploreforests,hikemo
[originaltext]ParticipantsinGirlsonRockgettoexploreforests,hikemo
[originaltext]W:Whatdoyouthinkaboutthemovie?M:Well.IthinkHa
随机试题
Thecouncilofanimalsappeared______.[br]ThecouncilWasheldaround______.A
Hehasabadcoldand______iswhyhedidn’tcome.A、itB、thisC、thatD、thereC本题考
在电子邮件系统中,客户端代理()。A.发送邮件和接收邮件通常都使用SMTP协议
以下不是地方性甲状腺肿的诊断标准的是A.居住在地方性甲状腺肿病区 B.甲状腺明
把患者的健康放置首位,切实为患者谋利益,符合的医学伦理学原则是A.公正原则 B
把一根钢管锯成两端要4分钟,若将它锯成8段要多少分钟?()A.16 B.
著名认知心理学家安德森认为,心智技能的形成需经过三个阶段,即认知阶段、(
(2018年真题)在药品质量标准中,属于药物安全性检查的项目是( )A.溶出度
A.洞底硬,不敏感 B.洞内探到穿髓孔,痛 C.洞内有红色肉芽组织 D.探
下列关于债务重组的定义,说法正确的有()。A.企业针对一笔因购销商品而产生的
最新回复
(
0
)