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、Birds and bats may fly into the turning blades. B、Birds and bats can’t stand high wind speed. C、Wind turbines can produce elec
A、Birds and bats may fly into the turning blades. B、Birds and bats can’t stand high wind speed. C、Wind turbines can produce elec
admin
2017-01-20
66
问题
Wind turbines are tall structures with large blades used to produce electricity. They are useful sources of low-cost, renewable energy.(1)But they can also be deadly to birds and bats. The turbines’ large blades turn quickly in the sky. Birds and bats sometimes fly into them and are killed.
But a new type of wind generator may offer an answer to that problem. Mr. Yanez and his friend Raoul Martin built a small wind tunnel to experiment on their own. They built a large working model of the generator in a field near their workplace. They called the equipment Vortex. Mr. Yanez described how the Vortex generator works. It does not spin around. So it creates no risk to birds and bats.(2)It is made mostly of plastic and has very few moving parts. The generator also does not create noise.
Questions 1 and 2 are based on the news report you have just heard.
1. Why are wind turbines deadly to birds and bats?
2. What is the Vortex generator made of?
选项
A、Birds and bats may fly into the turning blades.
B、Birds and bats can’t stand high wind speed.
C、Wind turbines can produce electricity.
D、Wind turbines can release poisonous gas.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/q1i7777K
0
大学英语四级
相关试题推荐
TheNewBusinessModelsA)Mostemergingcountriesarefondofhighlydiversifiedcompanies.India’sTataGroup,whichaccountsf
TheRedistributionofHopeA)"HOPE"isoneofthemostoverusedwordsinpubliclife,uptherewith"change".Yetitmatterseno
Genetics,thestudyofgenes,isgainingincreasingimportance.Genescan【B1】______manythings,fromwhomwelookliketowhat
A、Themanwasconfusedaboutthedateoftheappointment.B、Themanwantstochangethedateoftheappointment.C、Themanisgl
A、Thewomanisexcitedtohavelunchwiththeman.B、Thewomanhasappointmentwithsomeoneelse.C、Thewomanthinksthemandid
TheBritishgovernmentrecentlyannouncedaproposaltointroducehealthcareaccessfeesformigrantsandlong-termvisitorsth
Designingforsustainability:whatarethechallengesbehindgreenmaterials?A)LearningtosurfinCalifornia’sicybreakers,T
HowsciencegoeswrongScientificresearchhaschangedtheworld.Nowitneedstochangeitself.A)Asimpleideaunderli
A、Hehasgotafever.B、Heisallergictodrugs.C、Heisallergictocats.D、Hehasgottheflu.C
随机试题
这个标志是何含义?
科学发展观是马克思主义关于发展的世界观和方法论的集中体现,为科学发展观提供重要借鉴的是()
在病因推断过程中,反映某个因素与疾病的关联强度常用下列哪个指标
下述关于车流量较多的基地(包括出租汽车站、车场等)的出入口道路连接城市道路的位置,哪项规定是正确的?[2005年第39题]
破产法贯彻对债权人公平清偿的原则,破产财产在优先清偿破产费用和共益债务后,对所欠职工工资和税款,均按同一比例予以清偿。()
妄想的特点包括()。(2010年11月真题)
当人们反复探索一个问题的答案而毫无结果时,把问题暂时搁置一段时间再回过头来解决,这时常常可以很快找到解决方法,这种现象称为()。
下列选项中,不构成不当得利的情形有()。
在UML提供的图中,(37)用于描述系统与外部系统及用户之间的交互,(38)用于按时间顺序描述对象间的交互。
下列小题使用的数据表结果如下:图书(总编号C(6),分类号C(8),书名C(16),作者C(6),出版单位c(20),单价N(6,2))读者(借书证号C(4),单位C(8),姓名C(6),性别C(2),职称C(6),地址C(20))
最新回复
(
0
)