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
67
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
NexusWireYourUltimateLinktotheWorldPOSITIONSAVAILABLE:Toupholdourrep
[originaltext]BobbyMoorewasafamousEnglishsoccerplayerwholedtheEn
【C1】______peopledon’twakeupinthemorning,combtheirhair,and【C2】_____
A.高速公路客车站 B.高速公路休息区 C.高速公路加油站 D.高速公路服
落实舞台工程时应当与工程公司签订正式合同,包括对技术人员的要求以及设备型号、规格
灌注桩桩头松散对反射波曲线无影响。()
站用交流电源系统的母线安装在一个柜架单元内,主母线与其他元件之间的导体布置应采取
上海、深圳证券交易所对未完成股改的股票,规定其涨跌幅比例为10%。()
甲企业2021年2月经批准新占用一块耕地建造办公楼,另占用一块非耕地建造企业仓库
工程质量事故调查组处理质量事故时,项目监理机构的正确做法是( )。A.积极配合
最新回复
(
0
)