首页
登录
职称英语
[originaltext] Wind turbines are tall structures with large blades used to pr
[originaltext] Wind turbines are tall structures with large blades used to pr
游客
2024-01-22
6
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 of iron.
B、It is made of steel.
C、It is made of plastic.
D、It is made of paperboard.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3386008.html
相关试题推荐
[originaltext]FriendsReunited—oneoftheUK’sfirstsocialnetworks—hasann
[originaltext][3]FriendsReunited—oneoftheUK’sfirstsocialnetworks—has
[originaltext][3]FriendsReunited—oneoftheUK’sfirstsocialnetworks—has
[originaltext]FriendsReunited—oneoftheUK’sfirstsocialnetworks—hasan
[originaltext]FriendsReunited—oneoftheUK’sfirstsocialnetworks—hasann
[originaltext]FriendsReunited—oneoftheUK’sfirstsocialnetworks—hasann
[originaltext]Pupilsinthepoorestcountriesaresufferingfromalackofb
[originaltext]Pupilsinthepoorestcountriesaresufferingfromalackof
[originaltext]Pupilsinthepoorestcountriesaresufferingfromalackofb
[originaltext]IntheseasidetownofBrightoninsouthernEnglandtheruling
随机试题
AirPollutionandAcidRainTheincreasingvarietyandp
假定某企业根据2014年5月员工的出勤率、岗位、应扣款得出的工资表如下:
下列哪味药物专理脾肺气滞A.香附 B.木香 C.橘皮 D.乌药 E.檀香
下列方剂中,运用了“金水相生”方法的是A:百合固金汤B:参苓白术散C:六味地
免疫电镜技术中包埋后免疫染色最常用于A.酶标记抗原免疫组化技术B.非标记抗体免疫
允许凭执业医师处方零售的药品有A.麻醉药品片剂 B.第一类精神药品 C.第二
按照劳动争议主体的不同,可以把劳动争议划分为()。A:权利争议 B:利益争议
税法的正式渊源包括( )。A.税收法律 B.税收法规 C.国际税收条约
开工预付款支付的条件有:一是承包人和发包人已签订了施工合同,二是()。A.承包
下列哪项不是卵巢肿瘤的手术指征 A.卵巢瘤样病变 B.卵巢囊肿直径>5cm
最新回复
(
0
)