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
146
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. (12)By analyzing the speed of sound through the ocean over time, the scientists will be able to determine if our planet is warming up. (13) 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. (14) 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 (15)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."
Questions 12 to 15 are based on the passage you have just heard.
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/gCJ7777K
0
大学英语六级
相关试题推荐
A、Itwasmorerespected.B、Itwasusedbymorepeople.C、Itwasvandalizedbytourists.D、ItquicklydeterioratedagainafterLi
Itseemslogical:Collegegraduateshavelowerunemploymentandearnmorethanlesseducatedworkers,so,thethinkinggoes,the
A、Noonewantstolookatthecloset.B、Themanhasalreadycleaneditup.C、Ithasgraduallybecomeatrashcan.D、Itisoccupi
Withincreasingprosperity,WesternEuropeanyouthishavingaflingthatiscreatingdistinctiveconsumerandculturalpatterns
Withitsrecession-friendlycoffeeprices,plentifultablesandavailablebathrooms,McDonald’srestaurantsalloverthecountr
A、WilliamCarlosWilliams.B、Apoem.C、Ashortstorywriter.D、Itdoesn’tmentioned.A细节题。男士问女士的展示是关于什么的,女士回答WilliamCarlosWill
Forthispart,youareallowed30minutestowriteashortessayonschoolviolence.Youressayshouldincludethereasonsfort
Economicinequalityisthe"definingchallengeofourtime,"PresidentBarackObamadeclaredinaspeechlastmonthtotheCente
A、Itisprofitableandenvironmentallyfriendly.B、Itiswelllocatedandcompletelyautomated.C、Itissmallandunconventional
A、Subjective.B、Objective.C、Ambiguous.D、Changeable.B
随机试题
A.细胞水肿B.脂肪变性C.萎缩D.纤维素样坏死E.包裹钙化肺结核干酪样坏死转向愈合会发生
该病人最可能的诊断足为明确诊断,首选下列哪项检查
患者,男性,65岁。进食后突发下腹阵发性剧痛,烦躁10小时,伴恶心,无明显呕吐,肛门停止排气排便。查体:体温37.8℃,心率95次/分,血压140/85mmHg。心肺(-)。腹膨隆,下腹部膨隆明显,全腹均有压痛,反跳痛不明显。下腹部似可扪及一包块,肠鸣音稍
下列不是急性龋临床表现的为
现代煎药用具选用何种为宜
某试桩桩径0.4m,水平静载试验所采取的每级荷载增量值为15kN,试桩的H0-t-x0曲线明显陡降点的荷载为120kN,对应的水平位移为3.2mm,其前一级荷载和后一级荷载对应的水平位移分别为2.6mm和4.2mm。则由试验结果计算的地基土水平抗力系数的比
下列属于发包人应做的工作是()。
近日,国家人力资源和社会保障部证实《事业单位养老保险制度改革方案》已正式下发。改革的重要内容。是事业单位养老保险与企业基本一致。这一方案在网友中引起热议.大部分网友赞成该方案,有的网友希望提高企业养老金水平,而不是降低事业单位养老金水平。还有相当多的网友呼
(2004年论述70)运用法理学的知识,并适当结合我国现行宪法和古代法律制度的有关规定,论述当代中国公民在法律适用上一律平等原则。要求:观点明确,说理充分,条理清晰,语言规范、流畅。
WhatislackinginNorthAmerica’sretailindustry?
最新回复
(
0
)