首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、They are terrifying in appearance. B、They are attractive but poisonous. C、They are on the edge of extinction. D、They are nativ
A、They are terrifying in appearance. B、They are attractive but poisonous. C、They are on the edge of extinction. D、They are nativ
admin
2021-07-14
62
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、They are terrifying in appearance.
B、They are attractive but poisonous.
C、They are on the edge of extinction.
D、They are native to the North Pacific.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/3CJ7777K
0
大学英语六级
相关试题推荐
青藏铁路(Qinghai-TibetRailway)是西部大开发(WesternDevelopmentProgram)的标志性工程,是中国新世纪四大工程之一。该铁路东起青海西宁,西至西藏拉萨,全长1956公里。新建线路1110公里,于2001年6月2
高考,即全国高等教育入学考试(NationalHigherEducationEntranceExamination),是中国大陆最有影响力的考试之一。合格的高中毕业生和具有同等学力(educationallevel)的学生每年可以参加一次考试。学
Forthispart,youareallowed30minutestowriteashortessayentitledToWorkforaLargeCompanyoraSmallOne?Youshould
A、Onanimals.B、Onhumanvolunteers.C、Onbothanimalsandhumanvolunteers.D、Oncattleonly.A
A、TheJapanesemathematicteachers.B、BoththespeakerandhisGermanfriend.C、BothAmericansandimmigrants.D、Thesonofthe
Forthispart,youareallowed30minutestowriteashortessayentitledTheImportanceofSocialPractice.Youshouldwriteat
A、Hewonprizesinmanyracingcompetitions.B、Heenjoyedoutdooractivitiesinthesnow.C、Hegrewuphuntingandfishing.D、He
A、Theinvestigationwasconductedinanairport.B、Peoplewhoavoidedeyecontactturnedouttobeliars.C、20peoplewereident
随机试题
断续分齿法飞刀铣削蜗轮时,配置交换齿轮须注意正确选择惰轮数目。()
—Haveyoueverreadthatarticle?—Yes,ButIthinkthereisnothing______initWhichofthefollowingiswrong?
属于串联结构的器官为
A.肝B.心C.肾D.脾E.胃
气血两虚证的舌象是
医生甲退休后,擅自为人看病2年多。某日,甲为乙治疗,需注射青霉素。乙自述以前曾注射过青霉素,甲便未做皮试就给乙注射青霉素,乙因青霉素过敏而死亡。关于本案,下列哪一选项是正确的?
下列不属于市场细分的作用的是()。
下列有关文学常识的表述,不正确的一项是()。
态度是指心理上对其所接触的客观事物对象所持有的看法,并以各种不同的行为方式表露出来。下列不属于态度的要素的一项是()。
使用VC6打开考生文件夹projl下的工程pmjl,其中有“沙发”类Sofa和主函数main的定义。程序中位于每个,/ERROR**********found**********下的语句行有错误,请加以更正。更正后程序的输出应该是:座位数:3
最新回复
(
0
)