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、To determine whether the Earth’s temperature is going up. B、To study the behavior of some sea animals. C、To measure the moveme
A、To determine whether the Earth’s temperature is going up. B、To study the behavior of some sea animals. C、To measure the moveme
admin
2010-02-26
29
问题
A team of scientists recently began a project to measure the effects of loud noises on sea animals. If the sounds don’ t harm to animals, then the researchers can go ahead with a plan to transmit sound waves through the Pacific Ocean to take the earth’ s temperature. Sound travels faster through warm water than cold water. By analyzing the speed of sound through the ocean over time, the scientists will be able to determine if our planet is warming up. The experiment was nearly cancelled more than a year ago, because environmental groups fear that the sound will confuse or harm the sea- animals. So scientists are conducting tests on the animals first. The researchers lowered a loud speaker that emits low frequency sound about 1,000 meters beneath the ocean. Scientists at the site transmit sound waves into the ocean. Radio transmitters attached to some of the sea-animals help the researchers keep track of the animals’ movements. If sea-animals are distressed by the sounds, they would swim away from the speakers. So far, there aren’t any signs that the animals are being harmed. Researchers at the site noticed that large numbers of sea-animals swam near the speaker whether it was turned on or off, but it is still too soon to know for sure, the scientists admit. The test will continue through September. "If all goes well," they say, "We can begin measuring temperature changes on our planet."
选项
A、To determine whether the Earth’s temperature is going up.
B、To study the behavior of some sea animals.
C、To measure the movement of waves in the ocean.
D、To measure the ovement of waves in the ocean.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/CidK777K
0
大学英语六级
相关试题推荐
TheordinaryfamilyincolonialNorthAmericawasprimarilyconcernedwithsheerphysicalsurvivalandbeyondthat,isownecono
Accordingtothepassage,properarrangementofphysicalenvironmentinacompany______.Itcanbeinferredthattheauthor__
OnehundredandthirteenmillionAmericanshaveatleastonebank(36)______creditcard.Theygivetheirowners(37)______cred
OnehundredandthirteenmillionAmericanshaveatleastonebank(36)______creditcard.Theygivetheirowners(37)______cred
ThefamilyinBritainischanging.TheoncetypicalBritishfamilyheadedbytwoparentshas(36)______substantialchangesduri
TheybothlikedLondonbecausetheycouldspeakEnglishatabarorarestaurant.Bobdidn’tunderstandwhytheEnglishbusines
TheybothlikedLondonbecausetheycouldspeakEnglishatabarorarestaurant.Jessicawentuptotownanddidshoppingthe
A、Theairportisclosedduetobadweather.B、Theflightisfollowingitsregularschedule.C、Theplanewillreturntoitspoint
A、Amechanic.B、Arepairman.C、Amanager.D、Asalesman.B
随机试题
开篇用十四个叠字描写神态、环境和心境的词是李清照的____________。
门静脉高压并发上消化道大出血,断流手术疗效较好的方式是
调查基坑开挖范围内及影响范围内的各种管线,需要掌握管线的()等。
期货交易的目的是为不愿承担价格风险的生产者与经营者提供稳定成本的条件,从而保证生产经营活动的正常进行。( )
位于市区的乙公司为境内甲公司设立的全资子公司,注册资金500万元,系增值税一般纳税人,属于国家重点扶挣的高新技术企业(2012年12月已通过相关部门的认定,并获得了高新技术企业资格证书),主要从事电子设备研发、生产、销售、技术服务。2016年2月,中信税务
要据我国《劳动法》,()是用人单位享有的权利。
重庆市“创先争优”活动中“一讲二评三公示”做法日日有压力。月月有压力。你对此有何看法?
(2009下集管)国家信息化体系包括六个要素,这六个要素的关系如下图所示,其中①的位置应该是______。
Thesecondparagraphtellsusthat______Therealizationofacheapandeasilydeliveredvaccinewouldn’thelpmuchinnearfut
Onemorning,Iwaswaitingatthebusstop,worriedabout【K1】______(be)lateforschool.Thereweremanypeoplewaitingattheb
最新回复
(
0
)