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 our planet is warming up. B、To study the behaviors of some sea animals. C、To measure the depth of the oce
A、To determine whether our planet is warming up. B、To study the behaviors of some sea animals. C、To measure the depth of the oce
admin
2021-07-14
62
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 the 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 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 swim near the speaker whether it was turned on or off, but it is still too soon to know for sure, the scientists admit. The tests will continue through September.“If all goes well,”they say, “we can begin measuring temperature changes on our planet.”
12. What is the purpose of analyzing the speed of sound through the Pacific Ocean?
13. Why was the experiment nearly cancelled?
14. For what purpose were radio transmitters used?
15. What was the reaction of the sea animals in the sound tests?
选项
A、To determine whether our planet is warming up.
B、To study the behaviors of some sea animals.
C、To measure the depth of the ocean.
D、To measure the movement of the ocean.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/8CJ7777K
0
大学英语六级
相关试题推荐
Throughoutevolution,humanshavebeenactive.Ourancestorschasedpreyashunter-gatherersand【C1】______frompredators.Morer
A、It’squitedifferentwhenpronouncedinFrenchandEnglish.B、TowritewithoutusingitisdifficultbothinEnglishandinF
A、Hefeltitwascoolerthanwhat’sinamovie.B、Hefeltveryexcitedtothinkabouthiskids.C、Hewasfrightenedverymuch.D
Depression[A]Inbed,youtossandturn,unabletogetagoodnight’ssleep.Youfeelanxiousandworried.There’splentytodo,
Thehumannoseisanunderratedtool.Humansareoftenthoughttobeinsensitivesmellerscomparedwithanimals,butthisislar
Thehumannoseisanunderratedtool.Humansareoftenthoughttobeinsensitivesmellerscomparedwithanimals,butthisislar
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcenturyandthediffusionofprintinginthe15thand1
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcenturyandthediffusionofprintinginthe15thand1
A、Thedog’scolorandsize.B、Thedog’spriceandbreed.C、Whetherthedogwillneeditscompanion.D、Whetherthedogwillfitt
A、Hesaysthematteristheowner’sresponsibility.B、Hehastalkedwiththemanlivingin4Bmanytimes.C、Heisafraidofwhat
随机试题
我国最早充当交换媒介的物品是贝壳,因此贝壳也被看作是我国最早的货币。世界上最早的货币是______。
该病人心电图诊断为病人心尖区不规则地出现响亮的第一心音,其原因是
女,30岁。5年前右颈部触及花生米大小的肿块,随吞咽活动,无不适,近半年来增大明显且有声嘶。检查:甲状腺右叶有一直径2cm的肿块,无压痛,质硬,左叶不大。B超示右甲状腺单结节、边界欠清、血流丰富、内有强光点,右颈淋巴结肿大。测血T3、T4、TSH值正常,T
阿托品引起便秘的原因是()。
如果场地使用权未作为中国合营者出资的一部分,合营企业应向中国政府缴纳使用费。()
程能力指数CpL为()。
数学方法是西方科学中极其重要和不可或缺的方法,严谨和精确是科学精神的重要组成部分,而严谨和精确在很大程度上是由数学方法带来的。科学要求各种概念尽可能被定量且能以一定的精确性加以检验。定律和定理的精确性体现在它的数学表达上。实验测定值与定律和定理的数学推定值
大气层中的对流层是指自地面到8~18公里的大气空间,水汽多,具有剧烈的空气对流,气象要素水平分布不均匀;自对流层顶向上至50~55公里高度为平流层。空气垂直运动较弱,气流以水平运动为主,大气稳定,水汽尘埃含量少;自平流层向上80~85公里高度为中间层,气流
在《关于正确处理人民内部矛盾的问题》一文中,毛泽东全面阐述社会主义社会基本矛盾的性质和特点是()
Healways【C1】______earlytoenjoyatleasttwohoursofsolitudeinthehouseandgardenbeforethe【C2】______ofthefamilycame
最新回复
(
0
)