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
2024-02-02
74
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:https://tihaiku.com/zcyy/3415638.html
相关试题推荐
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:IjustreceivedanE-mailfromoneofmyformerclassmates.I
[originaltext]M:IjustreceivedanE-mailfromoneofmyformerclassmates.I
[originaltext]M:IjustreceivedanE-mailfromoneofmyformerclassmates.I
[originaltext]M:IjustreceivedanE-mailfromoneofmyformerclassmates.I
[originaltext]CountyfairsareatraditioninNewEnglandtowns.Theyoffer
[originaltext]CountyfairsareatraditioninNewEnglandtowns.Theyoffer
随机试题
HealthofficialsinwesternSiberiaaretobegininslaughterofthousandso
HowtoSpeakGoodEnglishI.IntroductionA.Manylearne
Kelseylikeseatingverymuch,butheisn’tvery_______aboutthefoodheeats.
施工质量控制的基本环节包括()。A.质量的事前控制 B.质量事中控制 C.
男性,30岁,3小时前劳动中无诱因突发上腹刀割样疼痛,迅速波及全腹。查体:舟状腹
主动脉瓣第二听诊区适合听诊A、舒张期杂音 B、连续性杂音 C、第一心音分裂
材料题 根据下面材料,回答97-100题。? 某建筑工程公司拟开发经营项目,
已知柱间基础梁上墙体高15m,双面抹灰,墙厚240mm,采用MU10烧结普通砖、
真核生物经转录作用生成的mRNA是A.内含子 B.单顺反子 C.多顺反子
(2015年真题)根据《建设工程安全生产管理条例》,施工起重机械和整体提升脚手架
最新回复
(
0
)