首页
登录
职称英语
[originaltext] Wind turbines are tall structures with large blades used to p
[originaltext] Wind turbines are tall structures with large blades used to p
游客
2023-06-29
51
管理
问题
Wind turbines are tall structures with large blades used to produce electricity. They are useful sources of low-cost, renewable energy.(3)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 workspace. 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.(4)It is made mostly of plastic and has very few moving parts. The generator also does not create noise.
3. Why are wind turbines deadly to birds and bats?
4. What is the Vortex generator made of?
选项
A、It is made mostly of iron.
B、It is made mostly of steel.
C、It is made mostly of plastic.
D、It is made mostly of paperboard.
答案
C
解析
转载请注明原文地址:http://tihaiku.com/zcyy/2794139.html
相关试题推荐
[originaltext]Thetouristindustrydiffersfrommanyothersinthatitempl
[originaltext]Thetouristindustrydiffersfrommanyothersinthatitempl
[originaltext]Areyousometimesalittletiredandsleepyintheearlyafte
[originaltext]Whilemostpeoplewerewarminguptheircars,Bruce,myhusba
[originaltext]Whilemostpeoplewerewarminguptheircars,Bruce,myhusba
[originaltext]Whilemostpeoplewerewarminguptheircars,Bruce,myhusba
[originaltext]Whilemostpeoplewerewarminguptheircars,Bruce,myhusba
[originaltext]M:PhysicsDepartment,DoctorBensonspeaking.W:Hello,Prof.Be
[originaltext]M:PhysicsDepartment,DoctorBensonspeaking.W:Hello,Prof.Be
[originaltext]Twitterhaschangeditspolicyandistakingstepstoidentif
随机试题
[img]2022m3x/ct_ve01202001m_eillist_0240_220329[/img][br][originaltext]C:Env
WhenMomandDadGrowOld[A]Theprospectoftalkingto
患者男,38岁,四肢无力3天。病前半月患腹泻。查体:四肢肌力3级,肌张力低,腱反
确诊胃肠道穿孔最主要的诊断依据是()A.腹部触痛 B.腹部疼痛 C.胸腹透视
含有简单香豆素的药材是A.五味子B.厚朴C.补骨脂D.秦皮E.白花前胡
共用题干 (一)资料2003年6月,自然人甲、乙与其他投资人采取发起设立方式,
痫证的病机为( ) A.痰气郁结 B.痰火扰心 C.肝风夹痰 D.肝风
信贷档案分段管理是指将信贷项目形成的文件材料按贷款期限(短期贷款和中长期贷款)实
()依法享有获取环境信息、参与和监督环境保护的权利。A.国家 B.公民
阿司匹林的镇痛作用机制主要是()A.抑制外周前列腺素的合成 B.不影响P物
最新回复
(
0
)